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pajetrace - fix Timer names in MPI-trace

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This commit is contained in:
Matthias Hochsteger 2020-10-08 12:20:46 +02:00
parent 7a1344bfcb
commit 2629208f38
1 changed files with 32 additions and 8 deletions
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40
libsrc/core/paje_trace.cpp
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@ -16,6 +16,19 @@ constexpr int MPI_PAJE_WRITER = 1;
namespace ngcore
{
static std::string GetTimerName( int id )
{
#ifndef PARALLEL
return NgProfiler::GetName(id);
#else // PARALLEL
if(id<NgProfiler::SIZE)
return NgProfiler::GetName(id);
NgMPI_Comm comm(MPI_COMM_WORLD);
return NgProfiler::GetName(id-NgProfiler::SIZE*comm.Rank());
#endif // PARALLEL
}
// Produce no traces by default
size_t PajeTrace::max_tracefile_size = 0;
@ -51,9 +64,11 @@ namespace ngcore
timer_events.reserve(reserve_size);
// sync start time when running in parallel
#ifdef PARALLEL
NgMPI_Comm comm(MPI_COMM_WORLD);
for(auto i : Range(5))
comm.Barrier();
#endif // PARALLEL
start_time = GetTimeCounter();
tracing_enabled = true;
@ -80,10 +95,22 @@ namespace ngcore
link.time -= start_time;
NgMPI_Comm comm(MPI_COMM_WORLD);
if(comm.Size()==1 || comm.Rank() == MPI_PAJE_WRITER)
if(comm.Size()==1)
{
Write(tracefile_name);
}
else
SendData();
{
// make sure the timer id is unique across all ranks
for(auto & event : timer_events)
event.timer_id += NgProfiler::SIZE*comm.Rank();
if(comm.Rank() == MPI_PAJE_WRITER)
Write(tracefile_name);
else
SendData();
}
}
@ -497,7 +524,7 @@ namespace ngcore
timer_ids.insert(t.id);
for(auto id : timer_ids)
timer_names[id] = NgProfiler::GetName(id);
timer_names[id] = GetTimerName(id);
#ifdef PARALLEL
if(nranks>1)
@ -718,13 +745,10 @@ namespace ngcore
std::map<int,std::string> timer_names;
for(auto & event : timer_events)
{
event.timer_id += NgProfiler::SIZE*rank;
timer_ids.insert(event.timer_id);
}
for(auto id : timer_ids)
timer_names[id] = NgProfiler::GetName(id-NgProfiler::SIZE*rank);
timer_names[id] = GetTimerName(id);
size_t size = timer_ids.size();
comm.Send(size, MPI_PAJE_WRITER, 0);
for(auto id : timer_ids)
@ -844,7 +868,7 @@ namespace ngcore
if(need_init)
{
current->name = is_timer_event ? NgProfiler::GetName(id) : job_names[id];
current->name = is_timer_event ? GetTimerName(id) : job_names[id];
current->time = 0.0;
current->id = id;
}