1 /* Copyright (c) 2007-2018. 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/s4u/Engine.hpp"
8 #include "simgrid/s4u/Host.hpp"
9 #include "smpi_comm.hpp"
10 #include "smpi_datatype_derived.hpp"
11 #include "smpi_status.hpp"
12 #include "src/simix/ActorImpl.hpp"
13 #include "src/smpi/include/smpi_actor.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_pmpi, smpi, "Logging specific to SMPI (pmpi)");
17 //this function need to be here because of the calls to smpi_bench
18 void TRACE_smpi_set_category(const char *category)
20 //need to end bench otherwise categories for execution tasks are wrong
22 if (category != nullptr)
23 TRACE_internal_smpi_set_category(category);
24 //begin bench after changing process's category
28 /* PMPI User level calls */
30 int PMPI_Init(int *argc, char ***argv)
32 xbt_assert(simgrid::s4u::Engine::is_initialized(),
33 "Your MPI program was not properly initialized. The easiest is to use smpirun to start it.");
34 // Init is called only once per SMPI process
35 if (not smpi_process()->initializing()){
36 simgrid::smpi::ActorExt::init(argc, argv);
38 if (not smpi_process()->initialized()){
39 int rank = simgrid::s4u::this_actor::get_pid();
40 TRACE_smpi_init(rank);
41 TRACE_smpi_comm_in(rank, __func__, new simgrid::instr::NoOpTIData("init"));
42 TRACE_smpi_comm_out(rank);
43 TRACE_smpi_computing_init(rank);
44 TRACE_smpi_sleeping_init(rank);
46 smpi_process()->mark_as_initialized();
57 int rank = simgrid::s4u::this_actor::get_pid();
58 TRACE_smpi_comm_in(rank, __func__, new simgrid::instr::NoOpTIData("finalize"));
60 smpi_process()->finalize();
62 TRACE_smpi_comm_out(rank);
63 TRACE_smpi_finalize(rank);
67 int PMPI_Finalized(int* flag)
69 *flag=smpi_process()!=nullptr ? smpi_process()->finalized() : 0;
73 int PMPI_Get_version (int *version,int *subversion){
74 *version = MPI_VERSION;
75 *subversion= MPI_SUBVERSION;
79 int PMPI_Get_library_version (char *version,int *len){
81 snprintf(version, MPI_MAX_LIBRARY_VERSION_STRING, "SMPI Version %d.%d. Copyright The Simgrid Team 2007-2018",
82 SIMGRID_VERSION_MAJOR, SIMGRID_VERSION_MINOR);
83 *len = strlen(version) > MPI_MAX_LIBRARY_VERSION_STRING ? MPI_MAX_LIBRARY_VERSION_STRING : strlen(version);
88 int PMPI_Init_thread(int* argc, char*** argv, int /*required*/, int* provided)
90 if (provided != nullptr) {
91 *provided = MPI_THREAD_SINGLE;
93 return MPI_Init(argc, argv);
96 int PMPI_Query_thread(int *provided)
98 if (provided == nullptr) {
101 *provided = MPI_THREAD_SINGLE;
106 int PMPI_Is_thread_main(int *flag)
108 // FIXME: The MPI standard seems to say that fatal errors need to be triggered
109 // if MPI has been finalized or not yet been initialized
110 if (flag == nullptr) {
113 *flag = simgrid::s4u::this_actor::get_pid() ==
114 1; // FIXME: I don't think this is correct: This just returns true if the process ID is 1,
115 // regardless of whether this process called MPI_Thread_Init() or not.
120 int PMPI_Abort(MPI_Comm /*comm*/, int /*errorcode*/)
123 // FIXME: should kill all processes in comm instead
124 smx_actor_t process = SIMIX_process_self();
125 simgrid::simix::simcall([process] { SIMIX_process_kill(process, process); });
131 return smpi_mpi_wtime();
134 extern double sg_maxmin_precision;
137 return sg_maxmin_precision;
140 int PMPI_Address(void *location, MPI_Aint * address)
142 if (address==nullptr) {
145 *address = reinterpret_cast<MPI_Aint>(location);
150 int PMPI_Get_address(void *location, MPI_Aint * address)
152 return PMPI_Address(location, address);
155 int PMPI_Get_processor_name(char *name, int *resultlen)
157 strncpy(name, sg_host_self()->get_cname(),
158 strlen(sg_host_self()->get_cname()) < MPI_MAX_PROCESSOR_NAME - 1 ? strlen(sg_host_self()->get_cname()) + 1
159 : MPI_MAX_PROCESSOR_NAME - 1);
160 *resultlen = strlen(name) > MPI_MAX_PROCESSOR_NAME ? MPI_MAX_PROCESSOR_NAME : strlen(name);
165 int PMPI_Get_count(MPI_Status * status, MPI_Datatype datatype, int *count)
167 if (status == nullptr || count == nullptr) {
169 } else if (not datatype->is_valid()) {
172 size_t size = datatype->size();
176 } else if (status->count % size != 0) {
177 return MPI_UNDEFINED;
179 *count = simgrid::smpi::Status::get_count(status, datatype);
185 int PMPI_Initialized(int* flag) {
186 *flag=(smpi_process()!=nullptr && smpi_process()->initialized());
190 int PMPI_Alloc_mem(MPI_Aint size, MPI_Info /*info*/, void* baseptr)
192 void *ptr = xbt_malloc(size);
194 return MPI_ERR_NO_MEM;
196 *static_cast<void**>(baseptr) = ptr;
201 int PMPI_Free_mem(void *baseptr){
206 int PMPI_Error_class(int errorcode, int* errorclass) {
207 // assume smpi uses only standard mpi error codes
208 *errorclass=errorcode;
212 int PMPI_Error_string(int errorcode, char* string, int* resultlen){
213 if (errorcode<0 || string ==nullptr){
216 static const char *smpi_error_string[] = {
217 FOREACH_ERROR(GENERATE_STRING)
219 *resultlen = strlen(smpi_error_string[errorcode]);
220 strncpy(string, smpi_error_string[errorcode], *resultlen);
225 int PMPI_Keyval_create(MPI_Copy_function* copy_fn, MPI_Delete_function* delete_fn, int* keyval, void* extra_state) {
226 smpi_copy_fn _copy_fn={copy_fn,nullptr,nullptr,nullptr,nullptr,nullptr};
227 smpi_delete_fn _delete_fn={delete_fn,nullptr,nullptr,nullptr,nullptr,nullptr};
228 return simgrid::smpi::Keyval::keyval_create<simgrid::smpi::Comm>(_copy_fn, _delete_fn, keyval, extra_state);
231 int PMPI_Keyval_free(int* keyval) {
232 return simgrid::smpi::Keyval::keyval_free<simgrid::smpi::Comm>(keyval);