aa9e5a1a27
Cleanup the configury so we properly check for Singularity under the various typical use-cases Bring the Singularity support online. We have to turn "off" the sm BTL as it segfaults from inside the container - root cause remains unclear. Also turned "off" the various OPAL shmem components in case they are involved and someone else tries to use them. Happily, the vader BTL works just fine!
198 строки
8.1 KiB
C
198 строки
8.1 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2008 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) 2007-2015 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010-2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2016 Intel, Inc. 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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* These symbols are in a file by themselves to provide nice linker
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* semantics. Since linkers generally pull in symbols by object
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* files, keeping these symbols as the only symbols in this file
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* prevents utility programs such as "ompi_info" from having to import
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* entire components just to query their version and parameters.
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*/
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#include "opal_config.h"
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#include "opal/constants.h"
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#include "opal/mca/shmem/shmem.h"
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#include "shmem_mmap.h"
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/**
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* public string showing the shmem ompi_mmap component version number
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*/
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const char *opal_shmem_mmap_component_version_string =
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"OPAL mmap shmem MCA component version " OPAL_VERSION;
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int opal_shmem_mmap_relocate_backing_file = 0;
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char *opal_shmem_mmap_backing_file_base_dir = NULL;
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bool opal_shmem_mmap_nfs_warning = true;
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/**
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* local functions
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*/
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static int mmap_register(void);
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static int mmap_open(void);
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static int mmap_close(void);
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static int mmap_query(mca_base_module_t **module, int *priority);
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static int mmap_runtime_query(mca_base_module_t **module,
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int *priority,
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const char *hint);
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/**
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* instantiate the public struct with all of our public information
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* and pointers to our public functions in it
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*/
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opal_shmem_mmap_component_t mca_shmem_mmap_component = {
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.super = {
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.base_version = {
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OPAL_SHMEM_BASE_VERSION_2_0_0,
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/* component name and version */
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.mca_component_name = "mmap",
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MCA_BASE_MAKE_VERSION(component, OPAL_MAJOR_VERSION, OPAL_MINOR_VERSION,
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OPAL_RELEASE_VERSION),
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.mca_open_component = mmap_open,
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.mca_close_component = mmap_close,
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.mca_query_component = mmap_query,
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.mca_register_component_params = mmap_register,
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},
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/* MCA v2.0.0 component meta data */
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.base_data = {
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/* the component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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},
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.runtime_query = mmap_runtime_query,
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},
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};
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/* ////////////////////////////////////////////////////////////////////////// */
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static int
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mmap_runtime_query(mca_base_module_t **module,
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int *priority,
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const char *hint)
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{
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/* no run-time query needed for mmap, so this is easy */
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*priority = mca_shmem_mmap_component.priority;
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*module = (mca_base_module_t *)&opal_shmem_mmap_module.super;
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return OPAL_SUCCESS;
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}
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static int
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mmap_register(void)
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{
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int ret;
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/* ////////////////////////////////////////////////////////////////////// */
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/* (default) priority - set high to make mmap the default */
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mca_shmem_mmap_component.priority = 50;
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ret = mca_base_component_var_register (&mca_shmem_mmap_component.super.base_version,
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"priority", "Priority for shmem mmap "
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"component (default: 50)", MCA_BASE_VAR_TYPE_INT,
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NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE,
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OPAL_INFO_LVL_3,
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MCA_BASE_VAR_SCOPE_ALL_EQ,
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&mca_shmem_mmap_component.priority);
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/*
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* Do we want the "warning: your mmap file is on NFS!" message? Per a
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* thread on the OMPI devel list
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* (http://www.open-mpi.org/community/lists/devel/2011/12/10054.php),
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* on some systems, it doesn't seem to matter. But per older threads,
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* it definitely does matter on some systems. Perhaps newer kernels
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* are smarter about this kind of stuff...? Regardless, we should
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* provide the ability to turn off this message for systems where the
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* effect doesn't matter.
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*/
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opal_shmem_mmap_nfs_warning = true;
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ret = mca_base_component_var_register (&mca_shmem_mmap_component.super.base_version,
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"enable_nfs_warning",
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"Enable the warning emitted when Open MPI detects "
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"that its shared memory backing file is located on "
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"a network filesystem (1 = enabled, 0 = disabled).",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE,
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OPAL_INFO_LVL_9, MCA_BASE_VAR_SCOPE_LOCAL,
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&opal_shmem_mmap_nfs_warning);
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if (0 > ret) {
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return ret;
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}
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opal_shmem_mmap_relocate_backing_file = 0;
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ret = mca_base_component_var_register (&mca_shmem_mmap_component.super.base_version,
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"relocate_backing_file",
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"Whether to change the default placement of backing files or not "
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"(Negative = try to relocate backing files to an area rooted at "
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"the path specified by "
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"shmem_mmap_backing_file_base_dir, but continue "
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"with the default path if the relocation fails, 0 = do not relocate, "
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"Positive = same as the negative option, but will fail if the "
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"relocation fails.", MCA_BASE_VAR_TYPE_INT, NULL, 0,
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MCA_BASE_VAR_FLAG_SETTABLE, OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_ALL_EQ, &opal_shmem_mmap_relocate_backing_file);
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if (0 > ret) {
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return ret;
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}
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opal_shmem_mmap_backing_file_base_dir = "/dev/shm";
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ret = mca_base_component_var_register (&mca_shmem_mmap_component.super.base_version,
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"backing_file_base_dir",
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"Specifies where backing files will be created when "
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"shmem_mmap_relocate_backing_file is in use.", MCA_BASE_VAR_TYPE_STRING,
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NULL, 0, MCA_BASE_VAR_FLAG_SETTABLE, OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_ALL_EQ,
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&opal_shmem_mmap_backing_file_base_dir);
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if (0 > ret) {
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return ret;
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}
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return OPAL_SUCCESS;
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}
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/* ////////////////////////////////////////////////////////////////////////// */
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static int
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mmap_open(void)
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{
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return OPAL_SUCCESS;
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}
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/* ////////////////////////////////////////////////////////////////////////// */
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static int
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mmap_query(mca_base_module_t **module, int *priority)
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{
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/* if we are in a container, then we must disqualify ourselves */
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if (NULL != getenv("OPAL_PROC_CONTAINER")) {
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*priority = 0;
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*module = NULL;
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return OPAL_ERROR;
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}
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*priority = mca_shmem_mmap_component.priority;
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*module = (mca_base_module_t *)&opal_shmem_mmap_module.super;
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return OPAL_SUCCESS;
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}
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/* ////////////////////////////////////////////////////////////////////////// */
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static int
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mmap_close(void)
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{
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return OPAL_SUCCESS;
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}
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