mirror of
https://github.com/NGSolve/netgen.git
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107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
#include <mutex>
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#include "profiler.hpp"
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namespace ngcore
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{
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std::vector<NgProfiler::TimerVal> NgProfiler::timers(NgProfiler::SIZE); // NOLINT
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std::string NgProfiler::filename;
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size_t dummy_thread_times[NgProfiler::SIZE];
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size_t * NgProfiler::thread_times = dummy_thread_times; // NOLINT
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size_t dummy_thread_flops[NgProfiler::SIZE];
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size_t * NgProfiler::thread_flops = dummy_thread_flops; // NOLINT
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std::shared_ptr<spdlog::logger> NgProfiler::logger = GetLogger("Profiler"); // NOLINT
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NgProfiler :: NgProfiler()
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{
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for (auto & t : timers)
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{
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t.tottime = 0.0;
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t.usedcounter = 0;
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t.flops = 0.0;
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}
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}
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NgProfiler :: ~NgProfiler()
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{
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if (filename.length())
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{
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logger->debug( "write profile to file {}", filename );
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FILE *prof = fopen(filename.c_str(),"w"); // NOLINT
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Print (prof);
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fclose(prof); // NOLINT
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}
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}
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void NgProfiler :: Print (FILE * prof)
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{
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int i = 0;
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for (auto & t : timers)
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{
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if (t.count != 0 || t.usedcounter != 0)
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{
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fprintf(prof,"job %3i calls %8li, time %6.4f sec",i,t.count,t.tottime); // NOLINT
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if(t.flops != 0.0)
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fprintf(prof,", MFlops = %6.2f",t.flops / (t.tottime) * 1e-6); // NOLINT
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if(t.loads != 0.0)
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fprintf(prof,", MLoads = %6.2f",t.loads / (t.tottime) * 1e-6); // NOLINT
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if(t.stores != 0.0)
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fprintf(prof,", MStores = %6.2f",t.stores / (t.tottime) * 1e-6); // NOLINT
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if(t.usedcounter)
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fprintf(prof," %s",t.name.c_str()); // NOLINT
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fprintf(prof,"\n"); // NOLINT
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}
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i++;
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}
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}
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int NgProfiler :: CreateTimer (const std::string & name)
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{
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static std::mutex createtimer_mutex;
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int nr = -1;
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{
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std::lock_guard<std::mutex> guard(createtimer_mutex);
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for (int i = SIZE-1; i > 0; i--)
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{
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auto & t = timers[i];
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if (!t.usedcounter)
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{
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t.usedcounter = 1;
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t.name = name;
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nr = i;
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break;
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}
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}
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}
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if (nr > -1) return nr;
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static bool first_overflow = true;
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if (first_overflow)
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{
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first_overflow = false;
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NgProfiler::logger->warn("no more timer available, reusing last one");
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}
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return 0;
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}
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void NgProfiler :: Reset ()
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{
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for(auto & t : timers)
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{
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t.tottime = 0.0;
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t.count = 0;
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t.flops = 0.0;
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t.loads = 0;
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t.stores = 0;
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}
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}
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NgProfiler prof; // NOLINT
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} // namespace ngcore
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