cf377db823
Features: - Support for an override parameter file (openmpi-mca-param-override.conf). Variable values in this file can not be overridden by any file or environment value. - Support for boolean, unsigned, and unsigned long long variables. - Support for true/false values. - Support for enumerations on integer variables. - Support for MPIT scope, verbosity, and binding. - Support for command line source. - Support for setting variable source via the environment using OMPI_MCA_SOURCE_<var name>=source (either command or file:filename) - Cleaner API. - Support for variable groups (equivalent to MPIT categories). Notes: - Variables must be created with a backing store (char **, int *, or bool *) that must live at least as long as the variable. - Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of mca_base_var_set_value() to change the value. - String values are duplicated when the variable is registered. It is up to the caller to free the original value if necessary. The new value will be freed by the mca_base_var system and must not be freed by the user. - Variables with constant scope may not be settable. - Variable groups (and all associated variables) are deregistered when the component is closed or the component repository item is freed. This prevents a segmentation fault from accessing a variable after its component is unloaded. - After some discussion we decided we should remove the automatic registration of component priority variables. Few component actually made use of this feature. - The enumerator interface was updated to be general enough to handle future uses of the interface. - The code to generate ompi_info output has been moved into the MCA variable system. See mca_base_var_dump(). opal: update core and components to mca_base_var system orte: update core and components to mca_base_var system ompi: update core and components to mca_base_var system This commit also modifies the rmaps framework. The following variables were moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode, rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables. This commit was SVN r28236.
133 строки
7.2 KiB
C
133 строки
7.2 KiB
C
/*
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* Copyright (c) 2004-2005 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) 2004-2005 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) 2004-2005 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) 2007 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
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*
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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 <stdio.h>
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#include "opal/util/output.h"
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#include "ompi/mca/btl/btl.h"
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#include "ompi/mca/btl/base/base.h"
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int mca_btl_base_param_register(mca_base_component_t *version,
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mca_btl_base_module_t *module)
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{
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char *msg;
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/* If this is ever triggered change the uint32_ts in mca_btl_base_module_t to unsigned ints */
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assert(sizeof(unsigned int) == sizeof(uint32_t));
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(void) mca_base_component_var_register(version, "exclusivity",
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"BTL exclusivity (must be >= 0)",
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MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_exclusivity);
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asprintf(&msg, "BTL bit flags (general flags: SEND=%d, PUT=%d, GET=%d, SEND_INPLACE=%d, RDMA_MATCHED=%d, HETEROGENEOUS_RDMA=%d; flags only used by the \"dr\" PML (ignored by others): ACK=%d, CHECKSUM=%d, RDMA_COMPLETION=%d; flags only used by the \"bfo\" PML (ignored by others): FAILOVER_SUPPORT=%d)",
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MCA_BTL_FLAGS_SEND,
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MCA_BTL_FLAGS_PUT,
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MCA_BTL_FLAGS_GET,
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MCA_BTL_FLAGS_SEND_INPLACE,
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MCA_BTL_FLAGS_RDMA_MATCHED,
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MCA_BTL_FLAGS_HETEROGENEOUS_RDMA,
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MCA_BTL_FLAGS_NEED_ACK,
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MCA_BTL_FLAGS_NEED_CSUM,
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MCA_BTL_FLAGS_RDMA_COMPLETION,
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MCA_BTL_FLAGS_FAILOVER_SUPPORT);
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(void) mca_base_component_var_register(version, "flags", msg,
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MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_flags);
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free(msg);
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(void) mca_base_component_var_register(version, "rndv_eager_limit", "Size (in bytes, including header) of \"phase 1\" fragment sent for all large messages (must be >= 0 and <= eager_limit)",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_rndv_eager_limit);
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(void) mca_base_component_var_register(version, "eager_limit", "Maximum size (in bytes, including header) of \"short\" messages (must be >= 1).",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_eager_limit);
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(void) mca_base_component_var_register(version, "max_send_size", "Maximum size (in bytes) of a single \"phase 2\" fragment of a long message when using the pipeline protocol (must be >= 1)",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_max_send_size);
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if (NULL != module->btl_put) {
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(void) mca_base_component_var_register(version, "rdma_pipeline_send_length", "Length of the \"phase 2\" portion of a large message (in bytes) when using the pipeline protocol. This part of the message will be split into fragments of size max_send_size and sent using send/receive semantics (must be >= 0; only relevant when the PUT flag is set)",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_rdma_pipeline_send_length);
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(void) mca_base_component_var_register(version, "rdma_pipeline_frag_size", "Maximum size (in bytes) of a single \"phase 3\" fragment from a long message when using the pipeline protocol. These fragments will be sent using RDMA semantics (must be >= 1; only relevant when the PUT flag is set)",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_rdma_pipeline_frag_size);
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(void) mca_base_component_var_register(version, "min_rdma_pipeline_size", "Messages smaller than this size (in bytes) will not use the RDMA pipeline protocol. Instead, they will be split into fragments of max_send_size and sent using send/receive semantics (must be >=0, and is automatically adjusted up to at least (eager_limit+btl_rdma_pipeline_send_length); only relevant when the PUT flag is set)",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_min_rdma_pipeline_size);
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(void) mca_base_component_var_register(version, "bandwidth", "Approximate maximum bandwidth of interconnect (0 = auto-detect value at run-time [not supported in all BTL modules], >= 1 = bandwidth in Mbps)",
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MCA_BASE_VAR_TYPE_UNSIGNED_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&module->btl_latency);
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}
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return mca_btl_base_param_verify(module);
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}
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/* Verify btl parameters make sense */
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int mca_btl_base_param_verify(mca_btl_base_module_t *module)
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{
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if (module->btl_min_rdma_pipeline_size <
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(module->btl_eager_limit + module->btl_rdma_pipeline_send_length)) {
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module->btl_min_rdma_pipeline_size =
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module->btl_eager_limit + module->btl_rdma_pipeline_send_length;
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}
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if (NULL == module->btl_put) {
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module->btl_flags &= ~MCA_BTL_FLAGS_PUT;
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}
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if (NULL == module->btl_get) {
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module->btl_flags &= ~MCA_BTL_FLAGS_GET;
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}
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return OMPI_SUCCESS;
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}
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