269 строки
7.9 KiB
C
269 строки
7.9 KiB
C
/**
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Copyright (c) 2010 Voltaire, Inc. All rights reserved.
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$COPYRIGHT$
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Additional copyrights may follow
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$HEADER$
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*/
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#include <dlfcn.h>
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#include <libgen.h>
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#include "coll_fca.h"
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/*
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* Public string showing the coll ompi_fca component version number
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*/
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const char *mca_coll_fca_component_version_string =
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"Open MPI FCA collective MCA component version " OMPI_VERSION;
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/*
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* Global variable
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*/
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int mca_coll_fca_output = -1;
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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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static int fca_open(void);
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//static int fca_query(void);
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static int fca_close(void);
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static int fca_register(void);
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mca_coll_fca_component_t mca_coll_fca_component = {
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/* First, the mca_component_t struct containing meta information
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about the component itfca */
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{
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{
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MCA_COLL_BASE_VERSION_2_0_0,
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/* Component name and version */
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"fca",
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OMPI_MAJOR_VERSION,
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OMPI_MINOR_VERSION,
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OMPI_RELEASE_VERSION,
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/* Component open and close functions */
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fca_open,
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fca_close,
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NULL,
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fca_register
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},
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{
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/* The component is not checkpoint ready */
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MCA_BASE_METADATA_PARAM_NONE
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},
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/* Initialization / querying functions */
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mca_coll_fca_init_query,
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mca_coll_fca_comm_query,
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}
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};
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#define FCA_MINOR_BIT (16UL)
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#define FCA_MAJOR_BIT (24UL)
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#define FCA_API_CLEAR_MICRO(__x) ((__x>>FCA_MINOR_BIT)<<FCA_MINOR_BIT)
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#define FCA_API_VER(__major,__minor) (__major<<FCA_MAJOR_BIT | __minor<<FCA_MINOR_BIT)
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#define GET_FCA_SYM(__name) \
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{ \
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mca_coll_fca_component.fca_ops.__name = dlsym(mca_coll_fca_component.fca_lib_handle, "fca_" #__name);\
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if (!mca_coll_fca_component.fca_ops.__name) { \
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FCA_ERROR("Symbol %s not found", "fca_" #__name); \
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return OMPI_ERROR; \
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} \
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}
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/**
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* Called from FCA blocking functions to progress MPI
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*/
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static void mca_coll_fca_progress_cb(void *arg)
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{
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opal_progress();
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}
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/**
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* Called from MPI blocking functions to progress FCA
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*/
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static int mca_coll_fca_mpi_progress_cb(void)
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{
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if (!mca_coll_fca_component.fca_context)
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return 0;
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mca_coll_fca_component.fca_ops.progress(mca_coll_fca_component.fca_context);
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return 0;
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}
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/**
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* Initialize translation tables for FCA datatypes and operations
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*/
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static void mca_coll_fca_init_fca_translations(void)
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{
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int i, ret;
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for (i = 0; i < FCA_DT_MAX_PREDEFINED; ++i) {
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mca_coll_fca_component.fca_dtypes[i].mpi_dtype = MPI_DATATYPE_NULL;
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mca_coll_fca_component.fca_dtypes[i].fca_dtype = -1;
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mca_coll_fca_component.fca_dtypes[i].fca_dtype_extent = 0;
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}
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for (i = 0; i < FCA_MAX_OPS; ++i) {
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mca_coll_fca_component.fca_reduce_ops[i].mpi_op = MPI_OP_NULL;
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mca_coll_fca_component.fca_reduce_ops[i].fca_op = -1;
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}
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}
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int mca_coll_fca_get_fca_lib(struct ompi_communicator_t *comm)
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{
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struct fca_init_spec *spec;
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int ret;
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unsigned long fca_ver;
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if (mca_coll_fca_component.fca_lib_handle)
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return OMPI_SUCCESS;
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mca_coll_fca_component.fca_lib_handle = dlopen(mca_coll_fca_component.fca_lib_path, RTLD_LAZY);
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if (!mca_coll_fca_component.fca_lib_handle) {
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FCA_ERROR("Failed to load FCA from %s: %m", mca_coll_fca_component.fca_lib_path);
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return OMPI_ERROR;
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}
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memset(&mca_coll_fca_component.fca_ops, 0, sizeof(mca_coll_fca_component.fca_ops));
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FCA_VERBOSE(1, "FCA Loaded from: %s", mca_coll_fca_component.fca_lib_path);
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GET_FCA_SYM(get_version);
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fca_ver = FCA_API_CLEAR_MICRO(mca_coll_fca_component.fca_ops.get_version());
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GET_FCA_SYM(init);
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GET_FCA_SYM(cleanup);
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GET_FCA_SYM(comm_new);
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GET_FCA_SYM(comm_end);
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GET_FCA_SYM(get_rank_info);
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GET_FCA_SYM(free_rank_info);
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GET_FCA_SYM(comm_init);
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GET_FCA_SYM(comm_destroy);
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GET_FCA_SYM(comm_get_caps);
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GET_FCA_SYM(do_reduce);
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GET_FCA_SYM(do_all_reduce);
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GET_FCA_SYM(do_bcast);
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GET_FCA_SYM(do_barrier);
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GET_FCA_SYM(maddr_ib_pton);
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GET_FCA_SYM(maddr_inet_pton);
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GET_FCA_SYM(parse_spec_file);
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GET_FCA_SYM(free_init_spec);
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GET_FCA_SYM(translate_mpi_op);
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GET_FCA_SYM(translate_mpi_dtype);
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GET_FCA_SYM(get_dtype_size);
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GET_FCA_SYM(strerror);
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spec = mca_coll_fca_component.fca_ops.parse_spec_file(mca_coll_fca_component.fca_spec_file);
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if (!spec) {
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FCA_ERROR("Failed to parse FCA spec file `%s'", mca_coll_fca_component.fca_spec_file);
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return OMPI_ERROR;
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}
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spec->job_id = ompi_proc_local()->proc_name.jobid;
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spec->rank_id = ompi_comm_rank(MPI_COMM_WORLD);
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spec->progress.func = mca_coll_fca_progress_cb;
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spec->progress.arg = NULL;
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ret = mca_coll_fca_component.fca_ops.init(spec, &mca_coll_fca_component.fca_context);
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if (ret < 0) {
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FCA_ERROR("Failed to initialize FCA: %s", mca_coll_fca_component.fca_ops.strerror(ret));
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return OMPI_ERROR;
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}
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mca_coll_fca_component.fca_ops.free_init_spec(spec);
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mca_coll_fca_init_fca_translations();
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if (fca_ver > FCA_API_VER(1,2)) {
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GET_FCA_SYM(progress);
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opal_progress_register(mca_coll_fca_mpi_progress_cb);
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}
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return OMPI_SUCCESS;
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}
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static void mca_coll_fca_close_fca_lib(void)
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{
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if (NULL != mca_coll_fca_component.fca_ops.progress) {
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opal_progress_unregister(mca_coll_fca_mpi_progress_cb);
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}
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mca_coll_fca_component.fca_ops.cleanup(mca_coll_fca_component.fca_context);
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mca_coll_fca_component.fca_context = NULL;
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dlclose(mca_coll_fca_component.fca_lib_handle);
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mca_coll_fca_component.fca_lib_handle = NULL;
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}
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static int fca_register(void)
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{
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FCA_VERBOSE(2, "==>");
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const mca_base_component_t *c = &mca_coll_fca_component.super.collm_version;
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mca_base_param_reg_int(c, "priority",
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"Priority of the fca coll component",
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false, false,
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80,
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&mca_coll_fca_component.fca_priority);
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mca_base_param_reg_int(c, "verbose",
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"Verbose level of the fca coll component",
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false, false,
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0,
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&mca_coll_fca_component.fca_verbose);
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mca_base_param_reg_int(c, "enable",
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"[1|0|] Enable/Disable Fabric Collective Accelerator",
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false, false,
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1,
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&mca_coll_fca_component.fca_enable);
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mca_base_param_reg_string(c, "spec_file",
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"Path to the FCA configuration file fca_mpi_spec.ini",
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false, false,
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""COLL_FCA_HOME"/etc/fca_mpi_spec.ini",
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&mca_coll_fca_component.fca_spec_file);
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mca_base_param_reg_string(c, "library_path",
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"FCA /path/to/libfca.so",
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false, false,
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""COLL_FCA_HOME"/lib/libfca.so",
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&mca_coll_fca_component.fca_lib_path);
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mca_base_param_reg_int(c, "np",
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"[integer] Minimal allowed job's NP to activate FCA",
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false, false,
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64,
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&mca_coll_fca_component.fca_np);
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return OMPI_SUCCESS;
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}
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static int fca_open(void)
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{
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FCA_VERBOSE(2, "==>");
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const mca_base_component_t *c = &mca_coll_fca_component.super.collm_version;
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mca_coll_fca_output = opal_output_open(NULL);
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opal_output_set_verbosity(mca_coll_fca_output, mca_coll_fca_component.fca_verbose);
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mca_coll_fca_component.fca_lib_handle = NULL;
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mca_coll_fca_component.fca_context = NULL;
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return OMPI_SUCCESS;
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}
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static int fca_close(void)
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{
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FCA_VERBOSE(2, "==>");
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if (!mca_coll_fca_component.fca_lib_handle || !mca_coll_fca_component.fca_context)
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return OMPI_SUCCESS;
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mca_coll_fca_close_fca_lib();
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return OMPI_SUCCESS;
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}
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