1222 строки
43 KiB
C
1222 строки
43 KiB
C
/*
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* Copyright (c) 2004-2011 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2012 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2007 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2007 Voltaire. All rights reserved.
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* Copyright (c) 2009-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010-2012 Los Alamos National Security, LLC.
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* All rights reserved.
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* Copyright (c) 2010-2012 IBM Corporation. All rights reserved.
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* Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif /* HAVE_FCNTL_H */
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#include <errno.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif /* HAVE_SYS_MMAN_H */
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#ifdef OMPI_BTL_SM_CMA_NEED_SYSCALL_DEFS
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#include "opal/sys/cma.h"
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#endif /* OMPI_BTL_SM_CMA_NEED_SYSCALL_DEFS */
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#include "opal/sys/atomic.h"
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#include "opal/class/opal_bitmap.h"
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#include "opal/util/output.h"
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#include "opal/util/printf.h"
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#include "opal/mca/hwloc/base/base.h"
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#include "orte/util/proc_info.h"
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#include "opal/datatype/opal_convertor.h"
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#include "ompi/class/ompi_free_list.h"
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#include "ompi/mca/btl/btl.h"
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#include "ompi/mca/mpool/base/base.h"
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#include "ompi/mca/mpool/sm/mpool_sm.h"
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#if OPAL_ENABLE_FT_CR == 1
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#include "opal/mca/crs/base/base.h"
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#include "opal/util/basename.h"
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#include "orte/mca/sstore/sstore.h"
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#include "ompi/runtime/ompi_cr.h"
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#endif
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#include "btl_sm.h"
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#include "btl_sm_endpoint.h"
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#include "btl_sm_frag.h"
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#include "btl_sm_fifo.h"
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#include "ompi/proc/proc.h"
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mca_btl_sm_t mca_btl_sm = {
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{
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&mca_btl_sm_component.super,
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0, /* btl_eager_limit */
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0, /* btl_rndv_eager_limit */
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0, /* btl_max_send_size */
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0, /* btl_rdma_pipeline_send_length */
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0, /* btl_rdma_pipeline_frag_size */
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0, /* btl_min_rdma_pipeline_size */
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0, /* btl_exclusivity */
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0, /* btl_latency */
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0, /* btl_bandwidth */
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0, /* btl flags */
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0, /* btl segment size */
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mca_btl_sm_add_procs,
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mca_btl_sm_del_procs,
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NULL,
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mca_btl_sm_finalize,
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mca_btl_sm_alloc,
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mca_btl_sm_free,
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mca_btl_sm_prepare_src,
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#if OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA
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mca_btl_sm_prepare_dst,
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#else
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NULL,
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#endif /* OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA */
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mca_btl_sm_send,
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mca_btl_sm_sendi,
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NULL, /* put */
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NULL, /* get -- optionally filled during initialization */
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mca_btl_sm_dump,
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NULL, /* mpool */
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mca_btl_sm_register_error_cb, /* register error */
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mca_btl_sm_ft_event
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}
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};
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/*
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* calculate offset of an address from the beginning of a shared memory segment
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*/
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#define ADDR2OFFSET(ADDR, BASE) ((char*)(ADDR) - (char*)(BASE))
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/*
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* calculate an absolute address in a local address space given an offset and
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* a base address of a shared memory segment
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*/
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#define OFFSET2ADDR(OFFSET, BASE) ((ptrdiff_t)(OFFSET) + (char*)(BASE))
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static void *mpool_calloc(size_t nmemb, size_t size)
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{
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void *buf;
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size_t bsize = nmemb * size;
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mca_mpool_base_module_t *mpool = mca_btl_sm_component.sm_mpool;
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buf = mpool->mpool_alloc(mpool, bsize, opal_cache_line_size, 0, NULL);
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if (NULL == buf)
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return NULL;
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memset(buf, 0, bsize);
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return buf;
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}
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static int sm_btl_first_time_init(mca_btl_sm_t *sm_btl, int n)
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{
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size_t size, length, length_payload;
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char *sm_ctl_file;
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sm_fifo_t *my_fifos;
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int my_mem_node, num_mem_nodes, i;
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ompi_proc_t **procs;
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size_t num_procs;
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mca_mpool_base_resources_t res;
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mca_btl_sm_component_t* m = &mca_btl_sm_component;
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/* Assume we don't have hwloc support and fill in dummy info */
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mca_btl_sm_component.mem_node = my_mem_node = 0;
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mca_btl_sm_component.num_mem_nodes = num_mem_nodes = 1;
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#if OPAL_HAVE_HWLOC
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/* If we have hwloc support, then get accurate information */
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if (NULL != opal_hwloc_topology) {
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i = opal_hwloc_base_get_nbobjs_by_type(opal_hwloc_topology,
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HWLOC_OBJ_NODE, 0,
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OPAL_HWLOC_AVAILABLE);
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/* If we find >0 NUMA nodes, then investigate further */
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if (i > 0) {
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opal_hwloc_level_t bind_level;
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unsigned int bind_index;
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/* JMS This tells me how many numa nodes are *available*,
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but it's not how many are being used *by this job*.
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Note that this is the value we've previously used (from
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the previous carto-based implementation), but it really
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should be improved to be how many NUMA nodes are being
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used *in this job*. */
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mca_btl_sm_component.num_mem_nodes = num_mem_nodes = i;
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/* Fill opal_hwloc_my_cpuset and find out to what level
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this process is bound (if at all) */
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opal_hwloc_base_get_local_cpuset();
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opal_hwloc_base_get_level_and_index(opal_hwloc_my_cpuset,
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&bind_level, &bind_index);
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if (OPAL_HWLOC_NODE_LEVEL != bind_level) {
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/* We are bound to *something* (i.e., our binding
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level is less than "node", meaning the entire
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machine), so discover which NUMA node this process
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is bound */
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if (OPAL_HWLOC_NUMA_LEVEL == bind_level) {
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mca_btl_sm_component.mem_node = my_mem_node = (int) bind_index;
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} else {
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if (OPAL_SUCCESS ==
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opal_hwloc_base_get_local_index(HWLOC_OBJ_NODE, 0, &bind_index)) {
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mca_btl_sm_component.mem_node = my_mem_node = (int) bind_index;
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} else {
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/* Weird. We can't figure out what NUMA node
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we're on. :-( */
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mca_btl_sm_component.mem_node = my_mem_node = -1;
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}
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}
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}
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}
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}
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#endif
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/* lookup shared memory pool */
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mca_btl_sm_component.sm_mpools = (mca_mpool_base_module_t **) calloc(num_mem_nodes,
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sizeof(mca_mpool_base_module_t*));
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/* Disable memory binding, because each MPI process will claim
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pages in the mpool for their local NUMA node */
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res.mem_node = -1;
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/* determine how much memory to create */
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/*
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* This heuristic formula mostly says that we request memory for:
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* - nfifos FIFOs, each comprising:
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* . a sm_fifo_t structure
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* . many pointers (fifo_size of them per FIFO)
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* - eager fragments (2*n of them, allocated in sm_free_list_inc chunks)
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* - max fragments (sm_free_list_num of them)
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*
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* On top of all that, we sprinkle in some number of
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* "opal_cache_line_size" additions to account for some
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* padding and edge effects that may lie in the allocator.
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*/
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res.size =
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FIFO_MAP_NUM(n) * ( sizeof(sm_fifo_t) + sizeof(void *) * m->fifo_size + 4 * opal_cache_line_size )
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+ ( 2 * n + m->sm_free_list_inc ) * ( m->eager_limit + 2 * opal_cache_line_size )
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+ m->sm_free_list_num * ( m->max_frag_size + 2 * opal_cache_line_size );
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/* before we multiply by n, make sure the result won't overflow */
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/* Stick that little pad in, particularly since we'll eventually
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* need a little extra space. E.g., in mca_mpool_sm_init() in
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* mpool_sm_component.c when sizeof(mca_common_sm_module_t) is
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* added.
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*/
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if ( ((double) res.size) * n > LONG_MAX - 4096 ) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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res.size *= n;
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/* now, create it */
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mca_btl_sm_component.sm_mpools[0] =
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mca_mpool_base_module_create(mca_btl_sm_component.sm_mpool_name,
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sm_btl, &res);
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/* Sanity check to ensure that we found it */
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if (NULL == mca_btl_sm_component.sm_mpools[0]) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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mca_btl_sm_component.sm_mpool = mca_btl_sm_component.sm_mpools[0];
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mca_btl_sm_component.sm_mpool_base =
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mca_btl_sm_component.sm_mpools[0]->mpool_base(mca_btl_sm_component.sm_mpools[0]);
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/* create a list of peers */
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mca_btl_sm_component.sm_peers = (struct mca_btl_base_endpoint_t**)
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calloc(n, sizeof(struct mca_btl_base_endpoint_t*));
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if (NULL == mca_btl_sm_component.sm_peers) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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/* Allocate Shared Memory BTL process coordination
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* data structure. This will reside in shared memory */
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/* set file name */
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if (asprintf(&sm_ctl_file, "%s"OPAL_PATH_SEP"shared_mem_btl_module.%s",
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orte_process_info.job_session_dir,
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orte_process_info.nodename) < 0) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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/* Pass in a data segment alignment of 0 to get no data
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segment (only the shared control structure) */
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size = sizeof(mca_common_sm_seg_header_t) +
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n * (sizeof(sm_fifo_t*) + sizeof(char *) + sizeof(uint16_t)) + opal_cache_line_size;
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procs = ompi_proc_world(&num_procs);
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if (!(mca_btl_sm_component.sm_seg =
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mca_common_sm_init(procs, num_procs, size, sm_ctl_file,
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sizeof(mca_common_sm_seg_header_t),
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opal_cache_line_size))) {
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opal_output(0, "mca_btl_sm_add_procs: unable to create shared memory "
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"BTL coordinating strucure :: size %lu \n",
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(unsigned long)size);
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free(procs);
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free(sm_ctl_file);
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return OMPI_ERROR;
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}
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free(procs);
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free(sm_ctl_file);
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/* check to make sure number of local procs is within the
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* specified limits */
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if(mca_btl_sm_component.sm_max_procs > 0 &&
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mca_btl_sm_component.num_smp_procs + n >
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mca_btl_sm_component.sm_max_procs) {
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return OMPI_ERROR;
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}
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mca_btl_sm_component.shm_fifo = (volatile sm_fifo_t **)mca_btl_sm_component.sm_seg->module_data_addr;
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mca_btl_sm_component.shm_bases = (char**)(mca_btl_sm_component.shm_fifo + n);
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mca_btl_sm_component.shm_mem_nodes = (uint16_t*)(mca_btl_sm_component.shm_bases + n);
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/* set the base of the shared memory segment */
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mca_btl_sm_component.shm_bases[mca_btl_sm_component.my_smp_rank] =
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(char*)mca_btl_sm_component.sm_mpool_base;
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mca_btl_sm_component.shm_mem_nodes[mca_btl_sm_component.my_smp_rank] =
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(uint16_t)my_mem_node;
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/* initialize the array of fifo's "owned" by this process */
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if(NULL == (my_fifos = (sm_fifo_t*)mpool_calloc(FIFO_MAP_NUM(n), sizeof(sm_fifo_t))))
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return OMPI_ERR_OUT_OF_RESOURCE;
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mca_btl_sm_component.shm_fifo[mca_btl_sm_component.my_smp_rank] = my_fifos;
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/* cache the pointer to the 2d fifo array. These addresses
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* are valid in the current process space */
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mca_btl_sm_component.fifo = (sm_fifo_t**)malloc(sizeof(sm_fifo_t*) * n);
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if(NULL == mca_btl_sm_component.fifo)
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return OMPI_ERR_OUT_OF_RESOURCE;
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mca_btl_sm_component.fifo[mca_btl_sm_component.my_smp_rank] = my_fifos;
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mca_btl_sm_component.mem_nodes = (uint16_t *) malloc(sizeof(uint16_t) * n);
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if(NULL == mca_btl_sm_component.mem_nodes)
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return OMPI_ERR_OUT_OF_RESOURCE;
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/* initialize fragment descriptor free lists */
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/* allocation will be for the fragment descriptor and payload buffer */
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length = sizeof(mca_btl_sm_frag1_t);
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length_payload =
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sizeof(mca_btl_sm_hdr_t) + mca_btl_sm_component.eager_limit;
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i = ompi_free_list_init_new(&mca_btl_sm_component.sm_frags_eager, length,
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opal_cache_line_size, OBJ_CLASS(mca_btl_sm_frag1_t),
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length_payload, opal_cache_line_size,
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mca_btl_sm_component.sm_free_list_num,
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mca_btl_sm_component.sm_free_list_max,
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mca_btl_sm_component.sm_free_list_inc,
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mca_btl_sm_component.sm_mpool);
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if ( OMPI_SUCCESS != i )
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return i;
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length = sizeof(mca_btl_sm_frag2_t);
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length_payload =
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sizeof(mca_btl_sm_hdr_t) + mca_btl_sm_component.max_frag_size;
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i = ompi_free_list_init_new(&mca_btl_sm_component.sm_frags_max, length,
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opal_cache_line_size, OBJ_CLASS(mca_btl_sm_frag2_t),
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length_payload, opal_cache_line_size,
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mca_btl_sm_component.sm_free_list_num,
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mca_btl_sm_component.sm_free_list_max,
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mca_btl_sm_component.sm_free_list_inc,
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mca_btl_sm_component.sm_mpool);
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if ( OMPI_SUCCESS != i )
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return i;
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i = ompi_free_list_init_new(&mca_btl_sm_component.sm_frags_user,
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sizeof(mca_btl_sm_user_t),
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opal_cache_line_size, OBJ_CLASS(mca_btl_sm_user_t),
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sizeof(mca_btl_sm_hdr_t), opal_cache_line_size,
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mca_btl_sm_component.sm_free_list_num,
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mca_btl_sm_component.sm_free_list_max,
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mca_btl_sm_component.sm_free_list_inc,
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mca_btl_sm_component.sm_mpool);
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if ( OMPI_SUCCESS != i )
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return i;
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mca_btl_sm_component.num_outstanding_frags = 0;
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mca_btl_sm_component.num_pending_sends = 0;
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i = opal_free_list_init(&mca_btl_sm_component.pending_send_fl,
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sizeof(btl_sm_pending_send_item_t),
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OBJ_CLASS(opal_free_list_item_t),
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16, -1, 32);
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if ( OMPI_SUCCESS != i )
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return i;
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/* set flag indicating btl has been inited */
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sm_btl->btl_inited = true;
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return OMPI_SUCCESS;
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}
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static struct mca_btl_base_endpoint_t *
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create_sm_endpoint(int local_proc, struct ompi_proc_t *proc)
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{
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struct mca_btl_base_endpoint_t *ep;
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#if OMPI_ENABLE_PROGRESS_THREADS == 1
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char path[PATH_MAX];
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#endif
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ep = (struct mca_btl_base_endpoint_t*)
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malloc(sizeof(struct mca_btl_base_endpoint_t));
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if(NULL == ep)
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return NULL;
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ep->peer_smp_rank = local_proc + mca_btl_sm_component.num_smp_procs;
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OBJ_CONSTRUCT(&ep->pending_sends, opal_list_t);
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OBJ_CONSTRUCT(&ep->endpoint_lock, opal_mutex_t);
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#if OMPI_ENABLE_PROGRESS_THREADS == 1
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sprintf(path, "%s"OPAL_PATH_SEP"sm_fifo.%lu",
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orte_process_info.job_session_dir,
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(unsigned long)proc->proc_name.vpid);
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ep->fifo_fd = open(path, O_WRONLY);
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if(ep->fifo_fd < 0) {
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opal_output(0, "mca_btl_sm_add_procs: open(%s) failed with errno=%d\n",
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path, errno);
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free(ep);
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return NULL;
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}
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#endif
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return ep;
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}
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static void calc_sm_max_procs(int n)
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{
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/* see if need to allocate space for extra procs */
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if(0 > mca_btl_sm_component.sm_max_procs) {
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/* no limit */
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if(0 <= mca_btl_sm_component.sm_extra_procs) {
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/* limit */
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mca_btl_sm_component.sm_max_procs =
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n + mca_btl_sm_component.sm_extra_procs;
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} else {
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/* no limit */
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mca_btl_sm_component.sm_max_procs = 2 * n;
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}
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}
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}
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|
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int mca_btl_sm_add_procs(
|
|
struct mca_btl_base_module_t* btl,
|
|
size_t nprocs,
|
|
struct ompi_proc_t **procs,
|
|
struct mca_btl_base_endpoint_t **peers,
|
|
opal_bitmap_t* reachability)
|
|
{
|
|
int return_code = OMPI_SUCCESS;
|
|
int32_t n_local_procs = 0, proc, j, my_smp_rank = -1;
|
|
ompi_proc_t* my_proc; /* pointer to caller's proc structure */
|
|
mca_btl_sm_t *sm_btl;
|
|
bool have_connected_peer = false;
|
|
char **bases;
|
|
/* initializion */
|
|
|
|
sm_btl = (mca_btl_sm_t *)btl;
|
|
|
|
/* get pointer to my proc structure */
|
|
if(NULL == (my_proc = ompi_proc_local()))
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
|
|
/* Get unique host identifier for each process in the list,
|
|
* and idetify procs that are on this host. Add procs on this
|
|
* host to shared memory reachbility list. Also, get number
|
|
* of local procs in the procs list. */
|
|
for(proc = 0; proc < (int32_t)nprocs; proc++) {
|
|
/* check to see if this proc can be reached via shmem (i.e.,
|
|
if they're on my local host and in my job) */
|
|
if (procs[proc]->proc_name.jobid != my_proc->proc_name.jobid ||
|
|
!OPAL_PROC_ON_LOCAL_NODE(procs[proc]->proc_flags)) {
|
|
peers[proc] = NULL;
|
|
continue;
|
|
}
|
|
|
|
/* check to see if this is me */
|
|
if(my_proc == procs[proc]) {
|
|
my_smp_rank = mca_btl_sm_component.my_smp_rank = n_local_procs++;
|
|
continue;
|
|
}
|
|
|
|
/* we have someone to talk to */
|
|
have_connected_peer = true;
|
|
|
|
if(!(peers[proc] = create_sm_endpoint(n_local_procs, procs[proc]))) {
|
|
return_code = OMPI_ERROR;
|
|
goto CLEANUP;
|
|
}
|
|
n_local_procs++;
|
|
|
|
/* add this proc to shared memory accessibility list */
|
|
return_code = opal_bitmap_set_bit(reachability, proc);
|
|
if(OMPI_SUCCESS != return_code)
|
|
goto CLEANUP;
|
|
}
|
|
|
|
/* jump out if there's not someone we can talk to */
|
|
if (!have_connected_peer)
|
|
goto CLEANUP;
|
|
|
|
/* make sure that my_smp_rank has been defined */
|
|
if(-1 == my_smp_rank) {
|
|
return_code = OMPI_ERROR;
|
|
goto CLEANUP;
|
|
}
|
|
|
|
calc_sm_max_procs(n_local_procs);
|
|
|
|
if (!sm_btl->btl_inited) {
|
|
return_code =
|
|
sm_btl_first_time_init(sm_btl, mca_btl_sm_component.sm_max_procs);
|
|
if(return_code != OMPI_SUCCESS)
|
|
goto CLEANUP;
|
|
}
|
|
|
|
/* set local proc's smp rank in the peers structure for
|
|
* rapid access and calculate reachability */
|
|
for(proc = 0; proc < (int32_t)nprocs; proc++) {
|
|
if(NULL == peers[proc])
|
|
continue;
|
|
mca_btl_sm_component.sm_peers[peers[proc]->peer_smp_rank] = peers[proc];
|
|
peers[proc]->my_smp_rank = my_smp_rank;
|
|
}
|
|
|
|
bases = mca_btl_sm_component.shm_bases;
|
|
|
|
/* initialize own FIFOs */
|
|
/*
|
|
* The receiver initializes all its FIFOs. All components will
|
|
* be allocated near the receiver. Nothing will be local to
|
|
* "the sender" since there will be many senders.
|
|
*/
|
|
for(j = mca_btl_sm_component.num_smp_procs;
|
|
j < mca_btl_sm_component.num_smp_procs + FIFO_MAP_NUM(n_local_procs); j++) {
|
|
|
|
return_code = sm_fifo_init( mca_btl_sm_component.fifo_size,
|
|
mca_btl_sm_component.sm_mpool,
|
|
&mca_btl_sm_component.fifo[my_smp_rank][j],
|
|
mca_btl_sm_component.fifo_lazy_free);
|
|
if(return_code != OMPI_SUCCESS)
|
|
goto CLEANUP;
|
|
}
|
|
|
|
opal_atomic_wmb();
|
|
|
|
/* Sync with other local procs. Force the FIFO initialization to always
|
|
* happens before the readers access it.
|
|
*/
|
|
opal_atomic_add_32( &mca_btl_sm_component.sm_seg->module_seg->seg_inited, 1);
|
|
while( n_local_procs >
|
|
mca_btl_sm_component.sm_seg->module_seg->seg_inited) {
|
|
opal_progress();
|
|
opal_atomic_rmb();
|
|
}
|
|
|
|
/* coordinate with other processes */
|
|
for(j = mca_btl_sm_component.num_smp_procs;
|
|
j < mca_btl_sm_component.num_smp_procs + n_local_procs; j++) {
|
|
ptrdiff_t diff;
|
|
|
|
/* spin until this element is allocated */
|
|
/* doesn't really wait for that process... FIFO might be allocated, but not initialized */
|
|
opal_atomic_rmb();
|
|
while(NULL == mca_btl_sm_component.shm_fifo[j]) {
|
|
opal_progress();
|
|
opal_atomic_rmb();
|
|
}
|
|
|
|
/* Calculate the difference as (my_base - their_base) */
|
|
diff = ADDR2OFFSET(bases[my_smp_rank], bases[j]);
|
|
|
|
/* store local address of remote fifos */
|
|
mca_btl_sm_component.fifo[j] =
|
|
(sm_fifo_t*)OFFSET2ADDR(diff, mca_btl_sm_component.shm_fifo[j]);
|
|
|
|
/* cache local copy of peer memory node number */
|
|
mca_btl_sm_component.mem_nodes[j] = mca_btl_sm_component.shm_mem_nodes[j];
|
|
}
|
|
|
|
/* update the local smp process count */
|
|
mca_btl_sm_component.num_smp_procs += n_local_procs;
|
|
|
|
/* make sure we have enough eager fragmnents for each process */
|
|
return_code = ompi_free_list_resize(&mca_btl_sm_component.sm_frags_eager,
|
|
mca_btl_sm_component.num_smp_procs * 2);
|
|
if (OMPI_SUCCESS != return_code)
|
|
goto CLEANUP;
|
|
|
|
CLEANUP:
|
|
return return_code;
|
|
}
|
|
|
|
int mca_btl_sm_del_procs(
|
|
struct mca_btl_base_module_t* btl,
|
|
size_t nprocs,
|
|
struct ompi_proc_t **procs,
|
|
struct mca_btl_base_endpoint_t **peers)
|
|
{
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* MCA->BTL Clean up any resources held by BTL module
|
|
* before the module is unloaded.
|
|
*
|
|
* @param btl (IN) BTL module.
|
|
*
|
|
* Prior to unloading a BTL module, the MCA framework will call
|
|
* the BTL finalize method of the module. Any resources held by
|
|
* the BTL should be released and if required the memory corresponding
|
|
* to the BTL module freed.
|
|
*
|
|
*/
|
|
|
|
int mca_btl_sm_finalize(struct mca_btl_base_module_t* btl)
|
|
{
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/*
|
|
* Register callback function for error handling..
|
|
*/
|
|
int mca_btl_sm_register_error_cb(
|
|
struct mca_btl_base_module_t* btl,
|
|
mca_btl_base_module_error_cb_fn_t cbfunc)
|
|
{
|
|
mca_btl_sm_t *sm_btl = (mca_btl_sm_t *)btl;
|
|
sm_btl->error_cb = cbfunc;
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* Allocate a segment.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param size (IN) Request segment size.
|
|
*/
|
|
extern mca_btl_base_descriptor_t* mca_btl_sm_alloc(
|
|
struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
uint8_t order,
|
|
size_t size,
|
|
uint32_t flags)
|
|
{
|
|
mca_btl_sm_frag_t* frag = NULL;
|
|
int rc;
|
|
if(size <= mca_btl_sm_component.eager_limit) {
|
|
MCA_BTL_SM_FRAG_ALLOC_EAGER(frag,rc);
|
|
} else if (size <= mca_btl_sm_component.max_frag_size) {
|
|
MCA_BTL_SM_FRAG_ALLOC_MAX(frag,rc);
|
|
}
|
|
|
|
if (OPAL_LIKELY(frag != NULL)) {
|
|
frag->segment.base.seg_len = size;
|
|
frag->base.des_flags = flags;
|
|
}
|
|
return (mca_btl_base_descriptor_t*)frag;
|
|
}
|
|
|
|
/**
|
|
* Return a segment allocated by this BTL.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param segment (IN) Allocated segment.
|
|
*/
|
|
extern int mca_btl_sm_free(
|
|
struct mca_btl_base_module_t* btl,
|
|
mca_btl_base_descriptor_t* des)
|
|
{
|
|
mca_btl_sm_frag_t* frag = (mca_btl_sm_frag_t*)des;
|
|
MCA_BTL_SM_FRAG_RETURN(frag);
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* Pack data
|
|
*
|
|
* @param btl (IN) BTL module
|
|
*/
|
|
struct mca_btl_base_descriptor_t* mca_btl_sm_prepare_src(
|
|
struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
mca_mpool_base_registration_t* registration,
|
|
struct opal_convertor_t* convertor,
|
|
uint8_t order,
|
|
size_t reserve,
|
|
size_t* size,
|
|
uint32_t flags)
|
|
{
|
|
mca_btl_sm_frag_t* frag;
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
size_t max_data = *size;
|
|
int rc;
|
|
|
|
#if OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA
|
|
mca_btl_sm_t* sm_btl = (mca_btl_sm_t*)btl;
|
|
|
|
if( (0 != reserve) || ( OPAL_UNLIKELY(!mca_btl_sm_component.use_knem)
|
|
&& OPAL_UNLIKELY(!mca_btl_sm_component.use_cma)) ) {
|
|
#endif
|
|
if ( reserve + max_data <= mca_btl_sm_component.eager_limit ) {
|
|
MCA_BTL_SM_FRAG_ALLOC_EAGER(frag,rc);
|
|
} else {
|
|
MCA_BTL_SM_FRAG_ALLOC_MAX(frag, rc);
|
|
}
|
|
if( OPAL_UNLIKELY(NULL == frag) ) {
|
|
return NULL;
|
|
}
|
|
|
|
if( OPAL_UNLIKELY(reserve + max_data > frag->size) ) {
|
|
max_data = frag->size - reserve;
|
|
}
|
|
iov.iov_len = max_data;
|
|
iov.iov_base =
|
|
(IOVBASE_TYPE*)(((unsigned char*)(frag->segment.base.seg_addr.pval)) + reserve);
|
|
|
|
rc = opal_convertor_pack(convertor, &iov, &iov_count, &max_data );
|
|
if( OPAL_UNLIKELY(rc < 0) ) {
|
|
MCA_BTL_SM_FRAG_RETURN(frag);
|
|
return NULL;
|
|
}
|
|
frag->segment.base.seg_len = reserve + max_data;
|
|
#if OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA
|
|
} else {
|
|
#if OMPI_BTL_SM_HAVE_KNEM
|
|
struct knem_cmd_create_region knem_cr;
|
|
struct knem_cmd_param_iovec knem_iov;
|
|
#endif /* OMPI_BTL_SM_HAVE_KNEM */
|
|
MCA_BTL_SM_FRAG_ALLOC_USER(frag, rc);
|
|
if( OPAL_UNLIKELY(NULL == frag) ) {
|
|
return NULL;
|
|
}
|
|
iov.iov_len = max_data;
|
|
iov.iov_base = NULL;
|
|
rc = opal_convertor_pack(convertor, &iov, &iov_count, &max_data);
|
|
if( OPAL_UNLIKELY(rc < 0) ) {
|
|
MCA_BTL_SM_FRAG_RETURN(frag);
|
|
return NULL;
|
|
}
|
|
frag->segment.base.seg_addr.lval = (uint64_t)(uintptr_t) iov.iov_base;
|
|
frag->segment.base.seg_len = max_data;
|
|
|
|
#if OMPI_BTL_SM_HAVE_KNEM
|
|
if (OPAL_LIKELY(mca_btl_sm_component.use_knem)) {
|
|
knem_iov.base = (uintptr_t)iov.iov_base;
|
|
knem_iov.len = max_data;
|
|
knem_cr.iovec_array = (uintptr_t)&knem_iov;
|
|
knem_cr.iovec_nr = iov_count;
|
|
knem_cr.protection = PROT_READ;
|
|
knem_cr.flags = KNEM_FLAG_SINGLEUSE;
|
|
if (OPAL_UNLIKELY(ioctl(sm_btl->knem_fd, KNEM_CMD_CREATE_REGION, &knem_cr) < 0)) {
|
|
return NULL;
|
|
}
|
|
frag->segment.key = knem_cr.cookie;
|
|
}
|
|
#endif /* OMPI_BTL_SM_HAVE_KNEM */
|
|
|
|
#if OMPI_BTL_SM_HAVE_CMA
|
|
if (OPAL_LIKELY(mca_btl_sm_component.use_cma)) {
|
|
/* Encode the pid as the key */
|
|
frag->segment.key = getpid();
|
|
}
|
|
#endif /* OMPI_BTL_SM_HAVE_CMA */
|
|
}
|
|
#endif /* OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA */
|
|
|
|
frag->base.des_src = &(frag->segment.base);
|
|
frag->base.des_src_cnt = 1;
|
|
frag->base.order = MCA_BTL_NO_ORDER;
|
|
frag->base.des_dst = NULL;
|
|
frag->base.des_dst_cnt = 0;
|
|
frag->base.des_flags = flags;
|
|
*size = max_data;
|
|
return &frag->base;
|
|
}
|
|
|
|
#if 0
|
|
#define MCA_BTL_SM_TOUCH_DATA_TILL_CACHELINE_BOUNDARY(sm_frag) \
|
|
do { \
|
|
char* _memory = (char*)(sm_frag)->segment.base.seg_addr.pval + \
|
|
(sm_frag)->segment.base.seg_len; \
|
|
int* _intmem; \
|
|
size_t align = (intptr_t)_memory & 0xFUL; \
|
|
switch( align & 0x3 ) { \
|
|
case 3: *_memory = 0; _memory++; \
|
|
case 2: *_memory = 0; _memory++; \
|
|
case 1: *_memory = 0; _memory++; \
|
|
} \
|
|
align >>= 2; \
|
|
_intmem = (int*)_memory; \
|
|
switch( align ) { \
|
|
case 3: *_intmem = 0; _intmem++; \
|
|
case 2: *_intmem = 0; _intmem++; \
|
|
case 1: *_intmem = 0; _intmem++; \
|
|
} \
|
|
} while(0)
|
|
#else
|
|
#define MCA_BTL_SM_TOUCH_DATA_TILL_CACHELINE_BOUNDARY(sm_frag)
|
|
#endif
|
|
|
|
#if 0
|
|
if( OPAL_LIKELY(align > 0) ) { \
|
|
align = 0xFUL - align; \
|
|
memset( _memory, 0, align ); \
|
|
} \
|
|
|
|
#endif
|
|
|
|
/**
|
|
* Initiate an inline send to the peer. If failure then return a descriptor.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param peer (IN) BTL peer addressing
|
|
*/
|
|
int mca_btl_sm_sendi( struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct opal_convertor_t* convertor,
|
|
void* header,
|
|
size_t header_size,
|
|
size_t payload_size,
|
|
uint8_t order,
|
|
uint32_t flags,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t** descriptor )
|
|
{
|
|
size_t length = (header_size + payload_size);
|
|
mca_btl_sm_frag_t* frag;
|
|
int rc;
|
|
|
|
if ( mca_btl_sm_component.num_outstanding_frags * 2 > (int) mca_btl_sm_component.fifo_size ) {
|
|
mca_btl_sm_component_progress();
|
|
}
|
|
|
|
/* this check should be unnecessary... turn into an assertion? */
|
|
if( length < mca_btl_sm_component.eager_limit ) {
|
|
|
|
/* allocate a fragment, giving up if we can't get one */
|
|
/* note that frag==NULL is equivalent to rc returning an error code */
|
|
MCA_BTL_SM_FRAG_ALLOC_EAGER(frag, rc);
|
|
if( OPAL_UNLIKELY(NULL == frag) ) {
|
|
*descriptor = NULL;
|
|
return rc;
|
|
}
|
|
|
|
/* fill in fragment fields */
|
|
frag->segment.base.seg_len = length;
|
|
frag->hdr->len = length;
|
|
assert( 0 == (flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) );
|
|
frag->base.des_flags = flags | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP; /* why do any flags matter here other than OWNERSHIP? */
|
|
frag->hdr->tag = tag;
|
|
frag->endpoint = endpoint;
|
|
|
|
/* write the match header (with MPI comm/tag/etc. info) */
|
|
memcpy( frag->segment.base.seg_addr.pval, header, header_size );
|
|
|
|
/* write the message data if there is any */
|
|
/*
|
|
We can add MEMCHECKER calls before and after the packing.
|
|
*/
|
|
if( payload_size ) {
|
|
size_t max_data;
|
|
struct iovec iov;
|
|
uint32_t iov_count;
|
|
/* pack the data into the supplied buffer */
|
|
iov.iov_base = (IOVBASE_TYPE*)((unsigned char*)frag->segment.base.seg_addr.pval + header_size);
|
|
iov.iov_len = max_data = payload_size;
|
|
iov_count = 1;
|
|
|
|
(void)opal_convertor_pack( convertor, &iov, &iov_count, &max_data);
|
|
|
|
assert(max_data == payload_size);
|
|
}
|
|
|
|
MCA_BTL_SM_TOUCH_DATA_TILL_CACHELINE_BOUNDARY(frag);
|
|
|
|
/* write the fragment pointer to the FIFO */
|
|
/*
|
|
* Note that we don't care what the FIFO-write return code is. Even if
|
|
* the return code indicates failure, the write has still "completed" from
|
|
* our point of view: it has been posted to a "pending send" queue.
|
|
*/
|
|
OPAL_THREAD_ADD32(&mca_btl_sm_component.num_outstanding_frags, +1);
|
|
MCA_BTL_SM_FIFO_WRITE(endpoint, endpoint->my_smp_rank,
|
|
endpoint->peer_smp_rank, (void *) VIRTUAL2RELATIVE(frag->hdr), false, true, rc);
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/* presumably, this code path will never get executed */
|
|
*descriptor = mca_btl_sm_alloc( btl, endpoint, order,
|
|
payload_size + header_size, flags);
|
|
return OMPI_ERR_RESOURCE_BUSY;
|
|
}
|
|
|
|
/**
|
|
* Initiate a send to the peer.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param peer (IN) BTL peer addressing
|
|
*/
|
|
int mca_btl_sm_send( struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_btl_base_descriptor_t* descriptor,
|
|
mca_btl_base_tag_t tag )
|
|
{
|
|
mca_btl_sm_frag_t* frag = (mca_btl_sm_frag_t*)descriptor;
|
|
int rc;
|
|
|
|
if ( mca_btl_sm_component.num_outstanding_frags * 2 > (int) mca_btl_sm_component.fifo_size ) {
|
|
mca_btl_sm_component_progress();
|
|
}
|
|
|
|
/* available header space */
|
|
frag->hdr->len = frag->segment.base.seg_len;
|
|
/* type of message, pt-2-pt, one-sided, etc */
|
|
frag->hdr->tag = tag;
|
|
|
|
MCA_BTL_SM_TOUCH_DATA_TILL_CACHELINE_BOUNDARY(frag);
|
|
|
|
frag->endpoint = endpoint;
|
|
|
|
/*
|
|
* post the descriptor in the queue - post with the relative
|
|
* address
|
|
*/
|
|
OPAL_THREAD_ADD32(&mca_btl_sm_component.num_outstanding_frags, +1);
|
|
MCA_BTL_SM_FIFO_WRITE(endpoint, endpoint->my_smp_rank,
|
|
endpoint->peer_smp_rank, (void *) VIRTUAL2RELATIVE(frag->hdr), false, true, rc);
|
|
if( OPAL_LIKELY(0 == rc) ) {
|
|
return 1; /* the data is completely gone */
|
|
}
|
|
frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK;
|
|
/* not yet gone, but pending. Let the upper level knows that
|
|
* the callback will be triggered when the data will be sent.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
#if OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA
|
|
struct mca_btl_base_descriptor_t* mca_btl_sm_prepare_dst(
|
|
struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_mpool_base_registration_t* registration,
|
|
struct opal_convertor_t* convertor,
|
|
uint8_t order,
|
|
size_t reserve,
|
|
size_t* size,
|
|
uint32_t flags)
|
|
{
|
|
int rc;
|
|
void *ptr;
|
|
mca_btl_sm_frag_t* frag;
|
|
|
|
MCA_BTL_SM_FRAG_ALLOC_USER(frag, rc);
|
|
if(OPAL_UNLIKELY(NULL == frag)) {
|
|
return NULL;
|
|
}
|
|
|
|
frag->segment.base.seg_len = *size;
|
|
opal_convertor_get_current_pointer( convertor, &ptr );
|
|
frag->segment.base.seg_addr.lval = (uint64_t)(uintptr_t) ptr;
|
|
|
|
frag->base.des_src = NULL;
|
|
frag->base.des_src_cnt = 0;
|
|
frag->base.des_dst = (mca_btl_base_segment_t*)&frag->segment;
|
|
frag->base.des_dst_cnt = 1;
|
|
frag->base.des_flags = flags;
|
|
return &frag->base;
|
|
}
|
|
|
|
/**
|
|
* Initiate an synchronous get.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param endpoint (IN) BTL addressing information
|
|
* @param descriptor (IN) Description of the data to be transferred
|
|
*/
|
|
int mca_btl_sm_get_sync(struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_btl_base_descriptor_t* des)
|
|
{
|
|
int btl_ownership;
|
|
mca_btl_sm_t* sm_btl = (mca_btl_sm_t*) btl;
|
|
mca_btl_sm_frag_t* frag = (mca_btl_sm_frag_t*)des;
|
|
mca_btl_sm_segment_t *src = (mca_btl_sm_segment_t*)des->des_src;
|
|
mca_btl_sm_segment_t *dst = (mca_btl_sm_segment_t*)des->des_dst;
|
|
#if OMPI_BTL_SM_HAVE_KNEM
|
|
if (OPAL_LIKELY(mca_btl_sm_component.use_knem)) {
|
|
struct knem_cmd_inline_copy icopy;
|
|
struct knem_cmd_param_iovec recv_iovec;
|
|
|
|
/* Fill in the ioctl data fields. There's no async completion, so
|
|
we don't need to worry about getting a slot, etc. */
|
|
recv_iovec.base = (uintptr_t) dst->base.seg_addr.lval;
|
|
recv_iovec.len = dst->base.seg_len;
|
|
icopy.local_iovec_array = (uintptr_t)&recv_iovec;
|
|
icopy.local_iovec_nr = 1;
|
|
icopy.remote_cookie = src->key;
|
|
icopy.remote_offset = 0;
|
|
icopy.write = 0;
|
|
|
|
/* Use the DMA flag if knem supports it *and* the segment length
|
|
is greater than the cutoff. Note that if the knem_dma_min
|
|
value is 0 (i.e., the MCA param was set to 0), the segment size
|
|
will never be larger than it, so DMA will never be used. */
|
|
icopy.flags = 0;
|
|
if (mca_btl_sm_component.knem_dma_min <= dst->base.seg_len) {
|
|
icopy.flags = mca_btl_sm_component.knem_dma_flag;
|
|
}
|
|
/* synchronous flags only, no need to specify icopy.async_status_index */
|
|
|
|
/* When the ioctl returns, the transfer is done and we can invoke
|
|
the btl callback and return the frag */
|
|
if (OPAL_UNLIKELY(0 != ioctl(sm_btl->knem_fd,
|
|
KNEM_CMD_INLINE_COPY, &icopy))) {
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
/* FIXME: what if icopy.current_status == KNEM_STATUS_FAILED? */
|
|
}
|
|
#endif
|
|
|
|
#if OMPI_BTL_SM_HAVE_CMA
|
|
if (OPAL_LIKELY(mca_btl_sm_component.use_cma)) {
|
|
char *remote_address, *local_address;
|
|
int remote_length, local_length;
|
|
struct iovec local, remote;
|
|
pid_t remote_pid;
|
|
int val;
|
|
|
|
remote_address = (char *)(uintptr_t) src->base.seg_addr.lval;
|
|
remote_length = src->base.seg_len;
|
|
|
|
local_address = (char *)(uintptr_t) dst->base.seg_addr.lval;
|
|
local_length = dst->base.seg_len;
|
|
|
|
remote_pid = src->key;
|
|
remote.iov_base = remote_address;
|
|
remote.iov_len = remote_length;
|
|
local.iov_base = local_address;
|
|
local.iov_len = local_length;
|
|
|
|
val = process_vm_readv(remote_pid, &local, 1, &remote, 1, 0);
|
|
|
|
if (val != local_length) {
|
|
if (val<0) {
|
|
opal_output(0, "mca_btl_sm_get_sync: process_vm_readv failed: %i",
|
|
errno);
|
|
} else {
|
|
/* Should never get a short read from process_vm_readv */
|
|
opal_output(0, "mca_btl_sm_get_sync: process_vm_readv short read: %i",
|
|
val);
|
|
}
|
|
return OMPI_ERROR;
|
|
}
|
|
}
|
|
#endif /* OMPI_BTL_SM_HAVE_CMA */
|
|
|
|
btl_ownership = (frag->base.des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
if (0 != (MCA_BTL_DES_SEND_ALWAYS_CALLBACK & frag->base.des_flags)) {
|
|
frag->base.des_cbfunc(&mca_btl_sm.super,
|
|
frag->endpoint, &frag->base,
|
|
OMPI_SUCCESS);
|
|
}
|
|
if (btl_ownership) {
|
|
MCA_BTL_SM_FRAG_RETURN(frag);
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
#endif /* OMPI_BTL_SM_HAVE_KNEM || OMPI_BTL_SM_HAVE_CMA */
|
|
|
|
|
|
/* No support async_get for CMA yet */
|
|
#if OMPI_BTL_SM_HAVE_KNEM
|
|
|
|
/**
|
|
* Initiate an asynchronous get.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param endpoint (IN) BTL addressing information
|
|
* @param descriptor (IN) Description of the data to be transferred
|
|
*/
|
|
int mca_btl_sm_get_async(struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_btl_base_descriptor_t* des)
|
|
{
|
|
int btl_ownership;
|
|
mca_btl_sm_t* sm_btl = (mca_btl_sm_t*) btl;
|
|
mca_btl_sm_frag_t* frag = (mca_btl_sm_frag_t*)des;
|
|
mca_btl_sm_segment_t *src = (mca_btl_sm_segment_t*)des->des_src;
|
|
mca_btl_sm_segment_t *dst = (mca_btl_sm_segment_t*)des->des_dst;
|
|
struct knem_cmd_inline_copy icopy;
|
|
struct knem_cmd_param_iovec recv_iovec;
|
|
|
|
/* If we have no knem slots available, return
|
|
TEMP_OUT_OF_RESOURCE */
|
|
if (sm_btl->knem_status_num_used >=
|
|
mca_btl_sm_component.knem_max_simultaneous) {
|
|
return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
/* We have a slot, so fill in the data fields. Bump the
|
|
first_avail and num_used counters. */
|
|
recv_iovec.base = (uintptr_t) dst->base.seg_addr.lval;
|
|
recv_iovec.len = dst->base.seg_len;
|
|
icopy.local_iovec_array = (uintptr_t)&recv_iovec;
|
|
icopy.local_iovec_nr = 1;
|
|
icopy.write = 0;
|
|
icopy.async_status_index = sm_btl->knem_status_first_avail++;
|
|
if (sm_btl->knem_status_first_avail >=
|
|
mca_btl_sm_component.knem_max_simultaneous) {
|
|
sm_btl->knem_status_first_avail = 0;
|
|
}
|
|
++sm_btl->knem_status_num_used;
|
|
icopy.remote_cookie = src->key;
|
|
icopy.remote_offset = 0;
|
|
|
|
/* Use the DMA flag if knem supports it *and* the segment length
|
|
is greater than the cutoff */
|
|
icopy.flags = KNEM_FLAG_ASYNCDMACOMPLETE;
|
|
if (mca_btl_sm_component.knem_dma_min <= dst->base.seg_len) {
|
|
icopy.flags = mca_btl_sm_component.knem_dma_flag;
|
|
}
|
|
|
|
sm_btl->knem_frag_array[icopy.async_status_index] = frag;
|
|
if (OPAL_LIKELY(0 == ioctl(sm_btl->knem_fd,
|
|
KNEM_CMD_INLINE_COPY, &icopy))) {
|
|
if (icopy.current_status != KNEM_STATUS_PENDING) {
|
|
/* request completed synchronously */
|
|
|
|
/* FIXME: what if icopy.current_status == KNEM_STATUS_FAILED? */
|
|
|
|
btl_ownership = (frag->base.des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
if (0 != (MCA_BTL_DES_SEND_ALWAYS_CALLBACK & frag->base.des_flags)) {
|
|
frag->base.des_cbfunc(&mca_btl_sm.super,
|
|
frag->endpoint, &frag->base,
|
|
OMPI_SUCCESS);
|
|
}
|
|
if (btl_ownership) {
|
|
MCA_BTL_SM_FRAG_RETURN(frag);
|
|
}
|
|
|
|
--sm_btl->knem_status_num_used;
|
|
++sm_btl->knem_status_first_used;
|
|
if (sm_btl->knem_status_first_used >=
|
|
mca_btl_sm_component.knem_max_simultaneous) {
|
|
sm_btl->knem_status_first_used = 0;
|
|
}
|
|
}
|
|
return OMPI_SUCCESS;
|
|
} else {
|
|
return OMPI_ERROR;
|
|
}
|
|
}
|
|
#endif /* OMPI_BTL_SM_HAVE_KNEM */
|
|
|
|
/**
|
|
*
|
|
*/
|
|
void mca_btl_sm_dump(struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
int verbose)
|
|
{
|
|
opal_list_item_t *item;
|
|
mca_btl_sm_frag_t* frag;
|
|
|
|
mca_btl_base_err("BTL SM %p endpoint %p [smp_rank %d] [peer_rank %d]\n",
|
|
(void*) btl, (void*) endpoint,
|
|
endpoint->my_smp_rank, endpoint->peer_smp_rank);
|
|
if( NULL != endpoint ) {
|
|
for(item = opal_list_get_first(&endpoint->pending_sends);
|
|
item != opal_list_get_end(&endpoint->pending_sends);
|
|
item = opal_list_get_next(item)) {
|
|
frag = (mca_btl_sm_frag_t*)item;
|
|
mca_btl_base_err(" | frag %p size %lu (hdr frag %p len %lu rank %d tag %d)\n",
|
|
(void*) frag, frag->size, (void*) frag->hdr->frag,
|
|
frag->hdr->len, frag->hdr->my_smp_rank,
|
|
frag->hdr->tag);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if OPAL_ENABLE_FT_CR == 0
|
|
int mca_btl_sm_ft_event(int state) {
|
|
return OMPI_SUCCESS;
|
|
}
|
|
#else
|
|
int mca_btl_sm_ft_event(int state) {
|
|
/* Notify mpool */
|
|
if( NULL != mca_btl_sm_component.sm_mpool &&
|
|
NULL != mca_btl_sm_component.sm_mpool->mpool_ft_event) {
|
|
mca_btl_sm_component.sm_mpool->mpool_ft_event(state);
|
|
}
|
|
|
|
if(OPAL_CRS_CHECKPOINT == state) {
|
|
if( NULL != mca_btl_sm_component.sm_seg ) {
|
|
/* On restart we need the old file names to exist (not necessarily
|
|
* contain content) so the CRS component does not fail when searching
|
|
* for these old file handles. The restart procedure will make sure
|
|
* these files get cleaned up appropriately.
|
|
*/
|
|
orte_sstore.set_attr(orte_sstore_handle_current,
|
|
SSTORE_METADATA_LOCAL_TOUCH,
|
|
mca_btl_sm_component.sm_seg->shmem_ds.seg_name);
|
|
}
|
|
}
|
|
else if(OPAL_CRS_CONTINUE == state) {
|
|
if( orte_cr_continue_like_restart ) {
|
|
if( NULL != mca_btl_sm_component.sm_seg ) {
|
|
/* Add shared memory file */
|
|
opal_crs_base_cleanup_append(mca_btl_sm_component.sm_seg->shmem_ds.seg_name, false);
|
|
}
|
|
|
|
/* Clear this so we force the module to re-init the sm files */
|
|
mca_btl_sm_component.sm_mpool = NULL;
|
|
}
|
|
}
|
|
else if(OPAL_CRS_RESTART == state ||
|
|
OPAL_CRS_RESTART_PRE == state) {
|
|
if( NULL != mca_btl_sm_component.sm_seg ) {
|
|
/* Add shared memory file */
|
|
opal_crs_base_cleanup_append(mca_btl_sm_component.sm_seg->shmem_ds.seg_name, false);
|
|
}
|
|
|
|
/* Clear this so we force the module to re-init the sm files */
|
|
mca_btl_sm_component.sm_mpool = NULL;
|
|
}
|
|
else if(OPAL_CRS_TERM == state ) {
|
|
;
|
|
}
|
|
else {
|
|
;
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
#endif /* OPAL_ENABLE_FT_CR */
|