devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

slightly optimize computeProductBlockingSizes by explicitely precomputing what is known at compile time

Browse Source
This commit is contained in:
Gael Guennebaud
2010-06-22 11:10:38 +02:00
parent 3ae0eee0b8
commit fd9a9fa0ae
2 changed files with 18 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
bench/bench_gemm.cpp
View File

@@ -2,8 +2,8 @@
// g++-4.4 bench_gemm.cpp -I .. -O2 -DNDEBUG -lrt -fopenmp && OMP_NUM_THREADS=2 ./a.out
// icpc bench_gemm.cpp -I .. -O3 -DNDEBUG -lrt -openmp && OMP_NUM_THREADS=2 ./a.out
#include <Eigen/Core>
#include <iostream>
#include <Eigen/Core>
#include <bench/BenchTimer.h>
using namespace std;
@@ -70,8 +70,6 @@ int main(int argc, char ** argv)
std::cout << "L1 cache size = " << (l1>0 ? l1/1024 : -1) << " KB\n";
std::cout << "L2/L3 cache size = " << (l2>0 ? l2/1024 : -1) << " KB\n";
setCpuCacheSizes(ei_queryL1CacheSize()/1,ei_queryTopLevelCacheSize()/2);
int rep = 1; // number of repetitions per try
int tries = 2; // number of tries, we keep the best
@@ -85,13 +83,17 @@ int main(int argc, char ** argv)
s = atoi(argv[i]+1);
else if(argv[i][0]=='c')
cache_size = atoi(argv[i]+1);
else if(argv[i][0]=='t')
tries = atoi(argv[i]+1);
else if(argv[i][0]=='p')
rep = atoi(argv[i]+1);
else
need_help = true;
}
if(need_help)
{
std::cout << argv[0] << " s<matrix size> c<cache size> \n";
std::cout << argv[0] << " s<matrix size> c<cache size> t<nb tries> p<nb repeats>\n";
return 1;
}