1 /* Copyright (c) 2018-2023. 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. */
6 #include <simgrid/s4u/Actor.hpp>
7 #include <src/instr/instr_smpi.hpp>
8 #include <src/smpi/include/smpi_actor.hpp>
9 #include <src/smpi/include/smpi_comm.hpp>
10 #include <src/smpi/plugins/ampi/instr_ampi.hpp>
11 #include <xbt/replay.hpp>
12 #include <xbt/sysdep.h>
15 #include <smpi/sampi.h>
18 std::vector<size_t> memory_size_;
19 std::map</*address*/ void*, size_t> alloc_table_; // Keep track of all allocations
22 void record(void* ptr, size_t size)
24 alloc_table_.emplace(ptr, size);
25 if (not simgrid::s4u::this_actor::is_maestro()) {
26 auto actor = static_cast<size_t>(simgrid::s4u::this_actor::get_pid());
27 if (actor >= memory_size_.size())
28 memory_size_.resize(actor + 1, 0);
29 memory_size_[actor] += size;
33 void forget(void* ptr)
35 auto elm = alloc_table_.find(ptr);
36 xbt_assert(elm != alloc_table_.end());
37 if (not simgrid::s4u::this_actor::is_maestro()) {
38 auto actor = static_cast<size_t>(simgrid::s4u::this_actor::get_pid());
39 memory_size_.at(actor) -= elm->second; // size
41 alloc_table_.erase(elm);
44 size_t summary() const
46 if (simgrid::s4u::this_actor::is_maestro())
48 auto actor = static_cast<size_t>(simgrid::s4u::this_actor::get_pid());
49 return actor < memory_size_.size() ? memory_size_[actor] : 0;
53 static AllocTracker alloc_tracker;
55 extern "C" void* _sampi_malloc(size_t size)
57 void* result = xbt_malloc(size);
58 alloc_tracker.record(result, size);
62 extern "C" void _sampi_free(void* ptr)
64 alloc_tracker.forget(ptr);
68 extern "C" void* _sampi_calloc(size_t num_elm, size_t elem_size)
70 size_t size = num_elm * elem_size;
71 void* result = xbt_malloc0(size);
72 alloc_tracker.record(result, size);
75 extern "C" void* _sampi_realloc(void* ptr, size_t size)
77 alloc_tracker.forget(ptr);
78 void* result = xbt_realloc(ptr, size);
79 alloc_tracker.record(result, size);
83 namespace simgrid::smpi::plugin::ampi {
84 xbt::signal<void(s4u::Actor const&)> on_iteration_in;
85 xbt::signal<void(s4u::Actor const&)> on_iteration_out;
86 } // namespace simgrid::smpi::plugin::ampi
88 /* FIXME The following contains several times "rank() + 1". This works for one
89 * instance, but we need to find a way to deal with this for several instances and
90 * for daemons: If we just replace this with the process id, we will get id's that
91 * don't start at 0 if we start daemons as well.
93 int APMPI_Iteration_in(MPI_Comm comm)
95 const SmpiBenchGuard suspend_bench;
96 TRACE_Iteration_in(comm->rank() + 1, new simgrid::instr::NoOpTIData("iteration_in")); // implemented on instr_smpi.c
100 int APMPI_Iteration_out(MPI_Comm comm)
102 const SmpiBenchGuard suspend_bench;
103 TRACE_Iteration_out(comm->rank() + 1, new simgrid::instr::NoOpTIData("iteration_out"));
107 void APMPI_Migrate(MPI_Comm comm)
109 const SmpiBenchGuard suspend_bench;
110 TRACE_migration_call(comm->rank() + 1, new simgrid::instr::AmpiMigrateTIData(alloc_tracker.summary()));
113 int AMPI_Iteration_in(MPI_Comm comm)
115 return APMPI_Iteration_in(comm);
118 int AMPI_Iteration_out(MPI_Comm comm)
120 return APMPI_Iteration_out(comm);
123 void AMPI_Migrate(MPI_Comm comm)