424 строки
14 KiB
C
424 строки
14 KiB
C
/*
|
|
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2006 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
#include "ompi_config.h"
|
|
#include <errno.h>
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif /* HAVE_UNISTD_H */
|
|
#ifdef HAVE_STRING_H
|
|
#include <string.h>
|
|
#endif /* HAVE_STRING_H */
|
|
#ifdef HAVE_FCNTL_H
|
|
#include <fcntl.h>
|
|
#endif /* HAVE_FCNTL_H */
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif /* HAVE_SYS_TYPES_H */
|
|
#ifdef HAVE_SYS_MMAN_H
|
|
#include <sys/mman.h>
|
|
#endif /* HAVE_SYS_MMAN_H */
|
|
#ifdef HAVE_SYS_STAT_H
|
|
#include <sys/stat.h> /* for mkfifo */
|
|
#endif /* HAVE_SYS_STAT_H */
|
|
|
|
#include "ompi/constants.h"
|
|
#include "opal/sys/cache.h"
|
|
#include "opal/event/event.h"
|
|
#include "opal/util/if.h"
|
|
#include "opal/util/argv.h"
|
|
#include "opal/util/output.h"
|
|
#include "orte/util/sys_info.h"
|
|
#include "orte/util/proc_info.h"
|
|
#include "ompi/mca/pml/pml.h"
|
|
#include "opal/mca/base/mca_base_param.h"
|
|
#include "ompi/runtime/ompi_module_exchange.h"
|
|
#include "ompi/mca/mpool/base/base.h"
|
|
#include "ompi/mca/common/sm/common_sm_mmap.h"
|
|
#include "ompi/mca/btl/base/btl_base_error.h"
|
|
#include "btl_sm.h"
|
|
#include "btl_sm_frag.h"
|
|
#include "btl_sm_fifo.h"
|
|
|
|
|
|
|
|
/*
|
|
* Shared Memory (SM) component instance.
|
|
*/
|
|
|
|
mca_btl_sm_component_t mca_btl_sm_component = {
|
|
{ /* super is being filled in */
|
|
/* First, the mca_base_component_t struct containing meta information
|
|
about the component itself */
|
|
{
|
|
/* Indicate that we are a pml v1.0.0 component (which also implies a
|
|
specific MCA version) */
|
|
MCA_BTL_BASE_VERSION_1_0_1,
|
|
"sm", /* MCA component name */
|
|
OMPI_MAJOR_VERSION, /* MCA component major version */
|
|
OMPI_MINOR_VERSION, /* MCA component minor version */
|
|
OMPI_RELEASE_VERSION, /* MCA component release version */
|
|
mca_btl_sm_component_open, /* component open */
|
|
mca_btl_sm_component_close /* component close */
|
|
},
|
|
|
|
/* Next the MCA v1.0.0 component meta data */
|
|
{
|
|
/* The component is not checkpoint ready */
|
|
MCA_BASE_METADATA_PARAM_NONE
|
|
},
|
|
|
|
mca_btl_sm_component_init,
|
|
mca_btl_sm_component_progress,
|
|
} /* end super */
|
|
};
|
|
|
|
|
|
/*
|
|
* utility routines for parameter registration
|
|
*/
|
|
|
|
static inline char* mca_btl_sm_param_register_string(
|
|
const char* param_name,
|
|
const char* default_value)
|
|
{
|
|
char *param_value;
|
|
int id = mca_base_param_register_string("btl","sm",param_name,NULL,default_value);
|
|
mca_base_param_lookup_string(id, ¶m_value);
|
|
return param_value;
|
|
}
|
|
|
|
static inline int mca_btl_sm_param_register_int(
|
|
const char* param_name,
|
|
int default_value)
|
|
{
|
|
int id = mca_base_param_register_int("btl","sm",param_name,NULL,default_value);
|
|
int param_value = default_value;
|
|
mca_base_param_lookup_int(id,¶m_value);
|
|
return param_value;
|
|
}
|
|
|
|
|
|
/*
|
|
* Called by MCA framework to open the component, registers
|
|
* component parameters.
|
|
*/
|
|
|
|
int mca_btl_sm_component_open(void)
|
|
{
|
|
/* register SM component parameters */
|
|
mca_btl_sm_component.sm_free_list_num =
|
|
mca_btl_sm_param_register_int("free_list_num", 8);
|
|
mca_btl_sm_component.sm_free_list_max =
|
|
mca_btl_sm_param_register_int("free_list_max", -1);
|
|
mca_btl_sm_component.sm_free_list_inc =
|
|
mca_btl_sm_param_register_int("free_list_inc", 64);
|
|
mca_btl_sm_component.sm_max_procs =
|
|
mca_btl_sm_param_register_int("max_procs", -1);
|
|
mca_btl_sm_component.sm_extra_procs =
|
|
mca_btl_sm_param_register_int("sm_extra_procs", -1);
|
|
mca_btl_sm_component.sm_mpool_name =
|
|
mca_btl_sm_param_register_string("mpool", "sm");
|
|
mca_btl_sm_component.size_of_cb_queue =
|
|
mca_btl_sm_param_register_int("size_of_cb_queue", 128);
|
|
mca_btl_sm_component.cb_lazy_free_freq =
|
|
mca_btl_sm_param_register_int("cb_lazy_free_freq", 120);
|
|
mca_btl_sm_component.cb_max_num =
|
|
mca_btl_sm_param_register_int("cb_max_num", -1);
|
|
/* make sure that queue size and lazy free frequency are consistent -
|
|
* want to make sure that slots are freed at a rate they can be
|
|
* reused, w/o allocating extra new circular buffer fifo arrays */
|
|
if( (float)(mca_btl_sm_component.cb_lazy_free_freq) >=
|
|
0.95*(float)(mca_btl_sm_component.size_of_cb_queue) ) {
|
|
/* upper limit */
|
|
mca_btl_sm_component.cb_lazy_free_freq=
|
|
(int)(0.95*(float)(mca_btl_sm_component.size_of_cb_queue));
|
|
/* lower limit */
|
|
if( 0>= mca_btl_sm_component.cb_lazy_free_freq ) {
|
|
mca_btl_sm_component.cb_lazy_free_freq=1;
|
|
}
|
|
}
|
|
|
|
/* default number of extra procs to allow for future growth */
|
|
mca_btl_sm_component.sm_extra_procs =
|
|
mca_btl_sm_param_register_int("sm_extra_procs", 2);
|
|
|
|
mca_btl_sm.super.btl_exclusivity = MCA_BTL_EXCLUSIVITY_HIGH-1;
|
|
mca_btl_sm.super.btl_eager_limit = 4*1024;
|
|
mca_btl_sm.super.btl_min_send_size = 32*1024;
|
|
mca_btl_sm.super.btl_max_send_size = 32*1024;
|
|
mca_btl_sm.super.btl_rdma_pipeline_send_length = 32*1024;
|
|
mca_btl_sm.super.btl_rdma_pipeline_frag_size = 32*1024;
|
|
mca_btl_sm.super.btl_min_rdma_pipeline_size = 0;
|
|
mca_btl_sm.super.btl_flags = MCA_BTL_FLAGS_SEND;
|
|
mca_btl_sm.super.btl_bandwidth = 900;
|
|
mca_btl_sm.super.btl_latency = 100;
|
|
|
|
mca_btl_base_param_register(&mca_btl_sm_component.super.btl_version,
|
|
&mca_btl_sm.super);
|
|
mca_btl_sm_component.max_frag_size = mca_btl_sm.super.btl_max_send_size;
|
|
mca_btl_sm_component.eager_limit = mca_btl_sm.super.btl_eager_limit;
|
|
|
|
/* initialize objects */
|
|
OBJ_CONSTRUCT(&mca_btl_sm_component.sm_lock, opal_mutex_t);
|
|
OBJ_CONSTRUCT(&mca_btl_sm_component.sm_frags, ompi_free_list_t);
|
|
OBJ_CONSTRUCT(&mca_btl_sm_component.sm_frags1, ompi_free_list_t);
|
|
OBJ_CONSTRUCT(&mca_btl_sm_component.sm_frags2, ompi_free_list_t);
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/*
|
|
* component cleanup - sanity checking of queue lengths
|
|
*/
|
|
|
|
int mca_btl_sm_component_close(void)
|
|
{
|
|
int return_value = OMPI_SUCCESS;
|
|
|
|
OBJ_DESTRUCT(&mca_btl_sm_component.sm_lock);
|
|
/**
|
|
* We don't have to destroy the fragment lists. They are allocated
|
|
* directly into the mmapped file, they will auto-magically dissapear
|
|
* when the file get unmapped.
|
|
*/
|
|
/*OBJ_DESTRUCT(&mca_btl_sm_component.sm_frags1);*/
|
|
/*OBJ_DESTRUCT(&mca_btl_sm_component.sm_frags2);*/
|
|
|
|
/* unmap the shared memory control structure */
|
|
if(mca_btl_sm_component.mmap_file != NULL) {
|
|
return_value = mca_common_sm_mmap_fini( mca_btl_sm_component.mmap_file );
|
|
if( OMPI_SUCCESS != return_value ) {
|
|
return_value=OMPI_ERROR;
|
|
opal_output(0," munmap failed :: file - %s :: errno - %d \n",
|
|
mca_btl_sm_component.mmap_file->map_addr,
|
|
errno);
|
|
goto CLEANUP;
|
|
}
|
|
|
|
/* unlink file, so that it will be deleted when all references
|
|
* to it are gone - no error checking, since we want all procs
|
|
* to call this, so that in an abnormal termination scenario,
|
|
* this file will still get cleaned up */
|
|
unlink(mca_btl_sm_component.mmap_file->map_path);
|
|
OBJ_RELEASE(mca_btl_sm_component.mmap_file);
|
|
}
|
|
|
|
#if OMPI_ENABLE_PROGRESS_THREADS == 1
|
|
/* close/cleanup fifo create for event notification */
|
|
if(mca_btl_sm_component.sm_fifo_fd > 0) {
|
|
/* write a done message down the pipe */
|
|
unsigned char cmd = DONE;
|
|
if( write(mca_btl_sm_component.sm_fifo_fd,&cmd,sizeof(cmd)) !=
|
|
sizeof(cmd)){
|
|
opal_output(0, "mca_btl_sm_component_close: write fifo failed: errno=%d\n",
|
|
errno);
|
|
}
|
|
opal_thread_join(&mca_btl_sm_component.sm_fifo_thread, NULL);
|
|
close(mca_btl_sm_component.sm_fifo_fd);
|
|
unlink(mca_btl_sm_component.sm_fifo_path);
|
|
}
|
|
#endif
|
|
|
|
|
|
CLEANUP:
|
|
|
|
/* return */
|
|
return return_value;
|
|
}
|
|
|
|
/*
|
|
* SM component initialization
|
|
*/
|
|
mca_btl_base_module_t** mca_btl_sm_component_init(
|
|
int *num_btls,
|
|
bool enable_progress_threads,
|
|
bool enable_mpi_threads)
|
|
{
|
|
mca_btl_base_module_t **btls = NULL;
|
|
|
|
*num_btls = 0;
|
|
|
|
/* lookup/create shared memory pool only when used */
|
|
mca_btl_sm_component.sm_mpool = NULL;
|
|
mca_btl_sm_component.sm_mpool_base = NULL;
|
|
|
|
#if OMPI_ENABLE_PROGRESS_THREADS == 1
|
|
/* create a named pipe to receive events */
|
|
sprintf( mca_btl_sm_component.sm_fifo_path,
|
|
"%s"OPAL_PATH_SEP"sm_fifo.%lu", orte_process_info.job_session_dir,
|
|
(unsigned long)orte_process_info.my_name->vpid );
|
|
if(mkfifo(mca_btl_sm_component.sm_fifo_path, 0660) < 0) {
|
|
opal_output(0, "mca_btl_sm_component_init: mkfifo failed with errno=%d\n",errno);
|
|
return NULL;
|
|
}
|
|
mca_btl_sm_component.sm_fifo_fd = open(mca_btl_sm_component.sm_fifo_path, O_RDWR);
|
|
if(mca_btl_sm_component.sm_fifo_fd < 0) {
|
|
opal_output(0, "mca_btl_sm_component_init: open(%s) failed with errno=%d\n",
|
|
mca_btl_sm_component.sm_fifo_path, errno);
|
|
return NULL;
|
|
}
|
|
|
|
OBJ_CONSTRUCT(&mca_btl_sm_component.sm_fifo_thread, opal_thread_t);
|
|
mca_btl_sm_component.sm_fifo_thread.t_run = (opal_thread_fn_t) mca_btl_sm_component_event_thread;
|
|
opal_thread_start(&mca_btl_sm_component.sm_fifo_thread);
|
|
#endif
|
|
|
|
/* allocate the Shared Memory BTL */
|
|
*num_btls = 1;
|
|
btls = (mca_btl_base_module_t**)malloc((*num_btls)*sizeof(mca_btl_base_module_t*));
|
|
if (NULL == btls) {
|
|
return NULL;
|
|
}
|
|
|
|
/* get pointer to the btls */
|
|
btls[0] = (mca_btl_base_module_t *)(&(mca_btl_sm));
|
|
|
|
/* initialize some PTL data */
|
|
/* start with no SM procs */
|
|
mca_btl_sm_component.num_smp_procs = 0;
|
|
mca_btl_sm_component.my_smp_rank = -1; /* not defined */
|
|
|
|
/* set flag indicating btl not inited */
|
|
mca_btl_sm.btl_inited=false;
|
|
|
|
return btls;
|
|
}
|
|
|
|
|
|
/*
|
|
* SM component progress.
|
|
*/
|
|
|
|
#if OMPI_ENABLE_PROGRESS_THREADS == 1
|
|
void mca_btl_sm_component_event_thread(opal_object_t* thread)
|
|
{
|
|
while(1) {
|
|
unsigned char cmd;
|
|
if(read(mca_btl_sm_component.sm_fifo_fd, &cmd, sizeof(cmd)) != sizeof(cmd)) {
|
|
/* error condition */
|
|
return;
|
|
}
|
|
if( DONE == cmd ){
|
|
/* return when done message received */
|
|
return;
|
|
}
|
|
mca_btl_sm_component_progress();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
int mca_btl_sm_component_progress(void)
|
|
{
|
|
/* local variables */
|
|
unsigned int peer_smp_rank ;
|
|
mca_btl_sm_frag_t *frag;
|
|
mca_btl_sm_frag_t Frag;
|
|
ompi_fifo_t *fifo = NULL;
|
|
mca_btl_sm_hdr_t *hdr;
|
|
int my_smp_rank=mca_btl_sm_component.my_smp_rank;
|
|
int proc;
|
|
int rc = 0;
|
|
|
|
/* send progress is made by the PML */
|
|
|
|
/*
|
|
* receive progress
|
|
*/
|
|
|
|
/* poll each fifo */
|
|
for(proc = 0; proc < mca_btl_sm_component.num_smp_procs - 1; proc++) {
|
|
peer_smp_rank = mca_btl_sm_component.list_smp_procs[proc];
|
|
fifo = &(mca_btl_sm_component.fifo[my_smp_rank][peer_smp_rank]);
|
|
|
|
/* if fifo is not yet setup - continue - not data has been sent*/
|
|
if(OMPI_CB_FREE == fifo->tail){
|
|
continue;
|
|
}
|
|
|
|
/* aquire thread lock */
|
|
if(opal_using_threads()) {
|
|
opal_atomic_lock(fifo->tail_lock);
|
|
}
|
|
|
|
hdr = (mca_btl_sm_hdr_t *)ompi_fifo_read_from_tail(fifo);
|
|
|
|
/* release thread lock */
|
|
if(opal_using_threads()) {
|
|
opal_atomic_unlock(fifo->tail_lock);
|
|
}
|
|
|
|
if(OMPI_CB_FREE == hdr) {
|
|
continue;
|
|
}
|
|
|
|
/* dispatch fragment by type */
|
|
switch(((uintptr_t)hdr) & MCA_BTL_SM_FRAG_TYPE_MASK) {
|
|
case MCA_BTL_SM_FRAG_ACK:
|
|
{
|
|
int status = (uintptr_t)hdr & MCA_BTL_SM_FRAG_STATUS_MASK;
|
|
frag = (mca_btl_sm_frag_t *)((char*)((uintptr_t)hdr &
|
|
(~(MCA_BTL_SM_FRAG_TYPE_MASK |
|
|
MCA_BTL_SM_FRAG_STATUS_MASK))));
|
|
/* completion callback */
|
|
frag->base.des_cbfunc(&mca_btl_sm.super, frag->endpoint,
|
|
&frag->base, status?OMPI_ERROR:OMPI_SUCCESS);
|
|
break;
|
|
}
|
|
case MCA_BTL_SM_FRAG_SEND:
|
|
{
|
|
mca_btl_sm_recv_reg_t* reg;
|
|
/* change the address from address relative to the shared
|
|
* memory address, to a true virtual address */
|
|
hdr = (mca_btl_sm_hdr_t *)((char *)hdr +
|
|
mca_btl_sm_component.sm_offset[peer_smp_rank]);
|
|
/* recv upcall */
|
|
reg = mca_btl_sm.sm_reg + hdr->tag;
|
|
Frag.segment.seg_addr.pval = ((char*)hdr) +
|
|
sizeof(mca_btl_sm_hdr_t);
|
|
Frag.segment.seg_len = hdr->len;
|
|
Frag.base.des_dst_cnt = 1;
|
|
Frag.base.des_dst = &(Frag.segment);
|
|
reg->cbfunc(&mca_btl_sm.super, hdr->tag, &(Frag.base),
|
|
reg->cbdata);
|
|
MCA_BTL_SM_FIFO_WRITE(
|
|
mca_btl_sm_component.sm_peers[peer_smp_rank],
|
|
my_smp_rank, peer_smp_rank, hdr->frag, rc);
|
|
if(OMPI_SUCCESS != rc)
|
|
goto err;
|
|
break;
|
|
}
|
|
default:
|
|
/* unknown */
|
|
hdr = (mca_btl_sm_hdr_t*)((uintptr_t)hdr->frag |
|
|
MCA_BTL_SM_FRAG_STATUS_MASK);
|
|
MCA_BTL_SM_FIFO_WRITE(
|
|
mca_btl_sm_component.sm_peers[peer_smp_rank],
|
|
my_smp_rank, peer_smp_rank, hdr, rc);
|
|
if(OMPI_SUCCESS != rc)
|
|
goto err;
|
|
break;
|
|
}
|
|
rc++;
|
|
}
|
|
return rc;
|
|
err:
|
|
BTL_ERROR(("SM faild to send message due to shortage of shared memory.\n"));
|
|
mca_btl_sm.error_cb(&mca_btl_sm.super, MCA_BTL_ERROR_FLAGS_FATAL);
|
|
return rc;
|
|
}
|