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Attempts to speed up the parallel IO

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This commit is contained in:
paboyle
2017-05-25 13:32:24 +01:00
parent a8c10b1933
commit b8b5934193
3 changed files with 133 additions and 91 deletions
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18
lib/parallelIO/NerscIO.h
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@ -31,7 +31,7 @@
#define GRID_NERSC_IO_H
#define PARALLEL_READ
#undef PARALLEL_WRITE
#define PARALLEL_WRITE
#include <algorithm>
#include <iostream>
@ -401,6 +401,18 @@ namespace Grid {
std::cout<<GridLogMessage <<"NERSC Configuration "<<file<<" link_trace "<<clone.link_trace
<<" header "<<header.link_trace<<std::endl;
if ( fabs(clone.plaquette -header.plaquette ) >= 1.0e-5 ) {
std::cout << " Plaquette mismatch "<<std::endl;
std::cout << Umu[0]<<std::endl;
std::cout << Umu[1]<<std::endl;
}
if ( csum != header.checksum ) {
std::cerr << " checksum mismatch " << std::endl;
std::cerr << " plaqs " << clone.plaquette << " " << header.plaquette << std::endl;
std::cerr << " trace " << clone.link_trace<< " " << header.link_trace<< std::endl;
std::cerr << " csum " <<std::hex<< csum << " " << header.checksum<< std::dec<< std::endl;
exit(0);
}
assert(fabs(clone.plaquette -header.plaquette ) < 1.0e-5 );
assert(fabs(clone.link_trace-header.link_trace) < 1.0e-6 );
assert(csum == header.checksum );
@ -542,6 +554,10 @@ namespace Grid {
// munger is a function of <floating point, Real, data_type>
uint32_t csum=BinaryIO::readRNGSerial(serial,parallel,file,offset);
if ( csum != header.checksum ) {
std::cerr << "checksum mismatch "<<std::hex<< csum <<" "<<header.checksum<<std::dec<<std::endl;
exit(0);
}
assert(csum == header.checksum );
std::cout<<GridLogMessage <<"Read NERSC RNG file "<<file<< " format "<< data_type <<std::endl;