borg_public/libLSS/tests/test_rgen.cpp

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2023-05-29 10:41:03 +02:00
/*+
ARES/HADES/BORG Package -- ./libLSS/tests/test_rgen.cpp
Copyright (C) 2014-2020 Guilhem Lavaux <guilhem.lavaux@iap.fr>
Copyright (C) 2009-2020 Jens Jasche <jens.jasche@fysik.su.se>
Additional contributions from:
Guilhem Lavaux <guilhem.lavaux@iap.fr> (2023)
+*/
#include <H5Cpp.h>
#include <stdlib.h>
#include <boost/chrono.hpp>
#include <boost/format.hpp>
#include "libLSS/tools/static_init.hpp"
#include "libLSS/samplers/rgen/gsl_random_number.hpp"
using namespace LibLSS;
using boost::chrono::system_clock;
using boost::chrono::duration;
using boost::format;
using boost::str;
static const long int LOOP_NO = 100000000;
int main()
{
StaticInit::execute();
Console::instance().setVerboseLevel<LOG_DEBUG>();
RandomNumberThreaded<GSL_RandomNumber> rgen(-1);
system_clock::time_point start = system_clock::now();
#pragma omp parallel for schedule(static)
for (long l = 0; l < LOOP_NO; l++)
rgen.get();
duration<double> perf = system_clock::now() - start;
Console::instance().print<LOG_INFO>(format("Number / sec = %lg Mint / sec") % (LOOP_NO/perf.count()/1000000) );
{
H5::H5File f("PRNG.state", H5F_ACC_TRUNC);
rgen.save(f);
}
try {
RandomNumberThreaded<GSL_RandomNumber> rgen2(2*smp_get_max_threads());
H5::H5File f("PRNG.state", 0);
rgen2.restore(f);
abort();
Console::instance().print<LOG_ERROR>("Did not get any error. Bad");
}
catch (const ErrorBadState& s) {
Console::instance().print<LOG_INFO>("Got error. Exact");
}
try {
RandomNumberThreaded<GSL_RandomNumber> rgen2(-1);
H5::H5File f("PRNG.state", 0);
rgen2.restore(f);
}
catch (const ErrorBase& s) {
Console::instance().print<LOG_ERROR>("Got an error. Bad");
abort();
}
return 0;
}