-/* Copyright (c) 2016-2020. The SimGrid Team.
+/* Copyright (c) 2016-2021. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
#include "xbt/log.h"
#include "xbt/parse_units.hpp"
#include "xbt/sysdep.h"
+#include "xbt/file.hpp"
#include <boost/tokenizer.hpp>
+#include "smpi_config.hpp"
+#include "smpi_f2c.hpp"
+#include "src/simix/smx_private.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_utils, smpi, "Logging specific to SMPI (utils)");
extern std::string surf_parsed_filename;
extern int surf_parse_lineno;
+namespace simgrid {
+namespace smpi {
+namespace utils {
+
+double total_benched_time=0;
+unsigned long total_malloc_size=0;
+unsigned long total_shared_size=0;
+unsigned int total_shared_calls=0;
+struct MaxMalloc {
+ size_t size = 0;
+ unsigned int numcall = 0;
+ int line = 0;
+ std::string file;
+};
+MaxMalloc max_malloc;
+
std::vector<s_smpi_factor_t> parse_factor(const std::string& smpi_coef_string)
{
std::vector<s_smpi_factor_t> smpi_factor;
return smpi_factor;
}
+
+void add_benched_time(double time){
+ total_benched_time += time;
+}
+
+void account_malloc_size(size_t size, const char* file, int line){
+ total_malloc_size += size;
+ if(size > max_malloc.size){
+ max_malloc.size = size;
+ max_malloc.line = line;
+ max_malloc.numcall = 1;
+ max_malloc.file = std::string(file);
+ }else if(size == max_malloc.size && max_malloc.line == line && not max_malloc.file.compare(file)){
+ max_malloc.numcall++;
+ }
+}
+
+void account_shared_size(size_t size){
+ total_shared_size += size;
+ total_shared_calls++;
+}
+
+void print_time_analysis(double global_time){
+ if (simgrid::config::get_value<bool>("smpi/display-timing")) {
+ XBT_INFO("Simulated time: %g seconds. \n\n"
+ "The simulation took %g seconds (after parsing and platform setup)\n"
+ "%g seconds were actual computation of the application",
+ SIMIX_get_clock(), global_time , total_benched_time);
+ if (total_benched_time/global_time>=0.75)
+ XBT_INFO("More than 75%% of the time was spent inside the application code.\n"
+ "You may want to use sampling functions or trace replay to reduce this.");
+ }
+}
+
+void print_memory_analysis(){
+ if (simgrid::smpi::F2C::lookup() != nullptr &&
+ simgrid::smpi::F2C::lookup()->size() > simgrid::smpi::F2C::get_num_default_handles()) {
+ XBT_INFO("Probable memory leaks in your code: SMPI detected %zu unfreed MPI handles : "
+ "display types and addresses (n max) with --cfg=smpi/list-leaks:n.\n"
+ "Running smpirun with -wrapper \"valgrind --leak-check=full\" can provide more information",
+ simgrid::smpi::F2C::lookup()->size() - simgrid::smpi::F2C::get_num_default_handles());
+ int n = simgrid::config::get_value<int>("smpi/list-leaks");
+ for (auto const& p : *simgrid::smpi::F2C::lookup()) {
+ static int printed = 0;
+ if (printed >= n)
+ break;
+ if (p.first >= simgrid::smpi::F2C::get_num_default_handles()) {
+ XBT_WARN("Leak %p of type %s", p.second, boost::core::demangle(typeid(*(p.second)).name()).c_str());
+ printed++;
+ }
+ }
+ }
+ if (simgrid::config::get_value<bool>("smpi/display-allocs")) {
+ if(total_malloc_size != 0)
+ XBT_INFO("Memory Usage: Simulated application allocated %lu bytes during its lifetime through malloc/calloc calls.\n"
+ "Largest allocation at once from a single process was %zu bytes, at %s:%d. It was called %u times during the whole simulation.\n"
+ "If this is too much, consider sharing allocations for computation buffers.\n"
+ "This can be done automatically by setting --cfg=smpi/auto-shared-malloc-thresh to the minimum size wanted size (this can alter execution if data content is necessary)\n",
+ total_malloc_size, max_malloc.size, simgrid::xbt::Path(max_malloc.file).get_base_name().c_str(), max_malloc.line, max_malloc.numcall
+ );
+ else
+ XBT_INFO("Allocations analysis asked, but 0 bytes were allocated through malloc/calloc calls intercepted by SMPI.\n"
+ "Either code is using other ways of allocatong memory, or it was built with SMPI_NO_OVERRIDE_MALLOC");
+ if(total_shared_size != 0)
+ XBT_INFO("%lu bytes were automatically shared between processes, in %u calls\n", total_shared_size, total_shared_calls);
+ }
+}
+
+}
+}
+} // namespace simgrid
