#include <array>
#include <boost/algorithm/string.hpp> /* split */
#include <boost/tokenizer.hpp>
+#include <boost/core/demangle.hpp>
#include <cerrno>
#include <cinttypes>
#include <cstdint> /* intmax_t */
// Copy the dynamic library, the new name must be the same length as the old one
// just replace the name with 7 digits for the rank and the rest of the name.
- unsigned int pad = 7;
- if (libname.length() < pad)
- pad = libname.length();
+ auto pad = std::min<unsigned>(7, libname.length());
std::string target_libname = std::string(pad - std::to_string(rank).length(), '0') + std::to_string(rank) + libname.substr(pad);
std::string target_lib = simgrid::config::get_value<std::string>("smpi/tmpdir") + "/" + target_libname;
target_libs.push_back(target_lib);
if (smpi_cfg_privatization() == SmpiPrivStrategies::MMAP)
smpi_destroy_global_memory_segments();
- if (simgrid::smpi::F2C::lookup() != nullptr)
+ if (simgrid::smpi::F2C::lookup() != nullptr){
+ if (simgrid::smpi::F2C::lookup()->size() > simgrid::smpi::F2C::get_num_default_handles()){
+ XBT_WARN("Probable 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");
+ if (n > 0) {
+ std::for_each(simgrid::smpi::F2C::lookup()->begin(),
+ simgrid::smpi::F2C::lookup()->end(),
+ [n](const std::pair<unsigned int, simgrid::smpi::F2C*> &p) {
+ static int printed = 0;
+ if(p.first >= simgrid::smpi::F2C::get_num_default_handles() && printed < n)
+ XBT_WARN ("Leak %p of type %s", p.second, boost::core::demangle(typeid(*(p.second)).name()).c_str() );
+ printed++;
+ });
+ }
+ }
simgrid::smpi::F2C::delete_lookup();
+ }
}
void smpi_mpi_init() {