1 /* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "simgrid/instr.h"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "simgrid/s4u/Host.hpp"
10 #include "smpi_comm.hpp"
11 #include "smpi_datatype_derived.hpp"
12 #include "smpi_status.hpp"
13 #include "src/kernel/actor/ActorImpl.hpp"
14 #include "src/smpi/include/smpi_actor.hpp"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_pmpi, smpi, "Logging specific to SMPI (pmpi)");
18 //this function need to be here because of the calls to smpi_bench
19 void TRACE_smpi_set_category(const char *category)
21 //need to end bench otherwise categories for execution tasks are wrong
23 if (category != nullptr) {
25 TRACE_category(category);
26 smpi_process()->set_tracing_category(category);
28 //begin bench after changing process's category
32 /* PMPI User level calls */
34 int PMPI_Init(int*, char***)
36 xbt_assert(simgrid::s4u::Engine::is_initialized(),
37 "Your MPI program was not properly initialized. The easiest is to use smpirun to start it.");
39 // Init is called only once per SMPI process
40 if (not smpi_process()->initializing()){
41 simgrid::smpi::ActorExt::init();
43 if (not smpi_process()->initialized()){
44 int rank_traced = simgrid::s4u::this_actor::get_pid();
45 TRACE_smpi_init(rank_traced);
46 TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::NoOpTIData("init"));
47 TRACE_smpi_comm_out(rank_traced);
48 TRACE_smpi_computing_init(rank_traced);
49 TRACE_smpi_sleeping_init(rank_traced);
51 smpi_process()->mark_as_initialized();
62 int rank_traced = simgrid::s4u::this_actor::get_pid();
63 TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::NoOpTIData("finalize"));
65 smpi_process()->finalize();
67 TRACE_smpi_comm_out(rank_traced);
68 TRACE_smpi_finalize(rank_traced);
72 int PMPI_Finalized(int* flag)
74 *flag=smpi_process()!=nullptr ? smpi_process()->finalized() : 0;
78 int PMPI_Get_version (int *version,int *subversion){
79 *version = MPI_VERSION;
80 *subversion= MPI_SUBVERSION;
84 int PMPI_Get_library_version (char *version,int *len){
86 snprintf(version, MPI_MAX_LIBRARY_VERSION_STRING, "SMPI Version %d.%d. Copyright The Simgrid Team 2007-2019",
87 SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR);
88 *len = strlen(version) > MPI_MAX_LIBRARY_VERSION_STRING ? MPI_MAX_LIBRARY_VERSION_STRING : strlen(version);
93 int PMPI_Init_thread(int* argc, char*** argv, int /*required*/, int* provided)
95 if (provided != nullptr) {
96 *provided = MPI_THREAD_SINGLE;
98 return MPI_Init(argc, argv);
101 int PMPI_Query_thread(int *provided)
103 if (provided == nullptr) {
106 *provided = MPI_THREAD_SINGLE;
111 int PMPI_Is_thread_main(int *flag)
113 // FIXME: The MPI standard seems to say that fatal errors need to be triggered
114 // if MPI has been finalized or not yet been initialized
115 if (flag == nullptr) {
118 *flag = simgrid::s4u::this_actor::get_pid() ==
119 1; // FIXME: I don't think this is correct: This just returns true if the process ID is 1,
120 // regardless of whether this process called MPI_Thread_Init() or not.
125 int PMPI_Abort(MPI_Comm /*comm*/, int /*errorcode*/)
128 // FIXME: should kill all processes in comm instead
129 smx_actor_t actor = SIMIX_process_self();
130 simgrid::simix::simcall([actor] { actor->exit(); });
136 return smpi_mpi_wtime();
139 extern double sg_maxmin_precision;
142 return sg_maxmin_precision;
145 int PMPI_Address(const void* location, MPI_Aint* address)
147 if (address==nullptr) {
150 *address = reinterpret_cast<MPI_Aint>(location);
155 int PMPI_Get_address(const void *location, MPI_Aint * address)
157 return PMPI_Address(location, address);
160 int PMPI_Get_processor_name(char *name, int *resultlen)
162 strncpy(name, sg_host_self()->get_cname(),
163 strlen(sg_host_self()->get_cname()) < MPI_MAX_PROCESSOR_NAME - 1 ? strlen(sg_host_self()->get_cname()) + 1
164 : MPI_MAX_PROCESSOR_NAME - 1);
165 *resultlen = strlen(name) > MPI_MAX_PROCESSOR_NAME ? MPI_MAX_PROCESSOR_NAME : strlen(name);
170 int PMPI_Get_count(const MPI_Status * status, MPI_Datatype datatype, int *count)
172 if (status == nullptr || count == nullptr) {
174 } else if (not datatype->is_valid()) {
177 size_t size = datatype->size();
181 } else if (status->count % size != 0) {
182 return MPI_UNDEFINED;
184 *count = simgrid::smpi::Status::get_count(status, datatype);
190 int PMPI_Initialized(int* flag) {
191 *flag=(smpi_process()!=nullptr && smpi_process()->initialized());
195 int PMPI_Alloc_mem(MPI_Aint size, MPI_Info /*info*/, void* baseptr)
197 void *ptr = xbt_malloc(size);
199 return MPI_ERR_NO_MEM;
201 *static_cast<void**>(baseptr) = ptr;
206 int PMPI_Free_mem(void *baseptr){
211 int PMPI_Error_class(int errorcode, int* errorclass) {
212 // assume smpi uses only standard mpi error codes
213 *errorclass=errorcode;
217 int PMPI_Error_string(int errorcode, char* string, int* resultlen){
218 if (errorcode<0 || errorcode>= MPI_MAX_ERROR_STRING || string ==nullptr){
221 static const char *smpi_error_string[] = {
222 FOREACH_ERROR(GENERATE_STRING)
224 *resultlen = strlen(smpi_error_string[errorcode]);
225 strncpy(string, smpi_error_string[errorcode], *resultlen);
230 int PMPI_Keyval_create(MPI_Copy_function* copy_fn, MPI_Delete_function* delete_fn, int* keyval, void* extra_state) {
231 smpi_copy_fn _copy_fn={copy_fn,nullptr,nullptr,nullptr,nullptr,nullptr};
232 smpi_delete_fn _delete_fn={delete_fn,nullptr,nullptr,nullptr,nullptr,nullptr};
233 return simgrid::smpi::Keyval::keyval_create<simgrid::smpi::Comm>(_copy_fn, _delete_fn, keyval, extra_state);
236 int PMPI_Keyval_free(int* keyval) {
237 return simgrid::smpi::Keyval::keyval_free<simgrid::smpi::Comm>(keyval);