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Added support for hmc and binary IO for a general field

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This commit is contained in:
Guido Cossu
2016-10-07 13:37:29 +01:00
parent c065e454c3
commit 11b4c80b27
8 changed files with 517 additions and 187 deletions
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148
lib/qcd/hmc/BinaryCheckpointer.h
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@ -36,93 +36,36 @@ directory
namespace Grid {
namespace QCD {
template <class fobj, class sobj>
struct BinarySimpleUnmunger {
typedef typename getPrecision<fobj>::real_scalar_type fobj_stype;
// Simple checkpointer, only binary file
template <class Impl>
class BinaryHmcCheckpointer : public HmcObservable<typename Impl::Field> {
private:
std::string configStem;
std::string rngStem;
int SaveInterval;
std::string format;
public:
INHERIT_FIELD_TYPES(Impl); // Gets the Field type, a Lattice object
// Extract types from the Field
typedef typename Field::vector_object vobj;
typedef typename vobj::scalar_object sobj;
typedef typename getPrecision<sobj>::real_scalar_type sobj_stype;
typedef typename sobj::DoublePrecision sobj_double;
void operator()(sobj &in, fobj &out, uint32_t &csum) {
// take word by word and transform accoding to the status
fobj_stype* out_buffer = (fobj_stype*)&out;
sobj_stype* in_buffer = (sobj_stype*)&in;
size_t fobj_words = sizeof(out)/sizeof(fobj_stype);
size_t sobj_words = sizeof(in)/sizeof(sobj_stype);
assert(fobj_words == sobj_words);
BinaryHmcCheckpointer(std::string cf, std::string rn, int savemodulo,
const std::string &f)
: configStem(cf), rngStem(rn), SaveInterval(savemodulo), format(f){};
for (unsigned int word = 0; word < sobj_words; word++)
out_buffer[word] = in_buffer[word]; // type conversion on the fly
void truncate(std::string file) {
std::ofstream fout(file, std::ios::out);
fout.close();
}
BinaryIO::Uint32Checksum((uint32_t*)&out,sizeof(out),csum);
};
template <class fobj, class sobj>
struct BinarySimpleMunger {
typedef typename getPrecision<fobj>::real_scalar_type fobj_stype;
typedef typename getPrecision<sobj>::real_scalar_type sobj_stype;
void operator()(sobj &out, fobj &in, uint32_t &csum) {
// take word by word and transform accoding to the status
fobj_stype* in_buffer = (fobj_stype*)&in;
sobj_stype* out_buffer = (sobj_stype*)&out;
size_t fobj_words = sizeof(in)/sizeof(fobj_stype);
size_t sobj_words = sizeof(out)/sizeof(sobj_stype);
assert(fobj_words == sobj_words);
for (unsigned int word = 0; word < sobj_words; word++)
out_buffer[word] = in_buffer[word]; // type conversion on the fly
BinaryIO::Uint32Checksum((uint32_t*)&in,sizeof(in),csum);
};
// Only for the main field in the hmc
template <class Impl>
class BinaryHmcCheckpointer : public HmcObservable<typename Impl::Field> {
private:
std::string configStem;
std::string rngStem;
int SaveInterval;
public:
INHERIT_FIELD_TYPES(Impl); // The Field is a Lattice object
typedef typename Field::vector_object vobj;
typedef typename vobj::scalar_object sobj;
typedef typename getPrecision<sobj>::real_scalar_type sobj_stype;
typedef typename sobj::DoublePrecision sobj_double;
BinaryHmcCheckpointer(std::string cf, std::string rn, int savemodulo, const std::string &format)
: configStem(cf),
rngStem(rn),
SaveInterval(savemodulo){};
void TrajectoryComplete(int traj, Field &U, GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
if ((traj % SaveInterval) == 0) {
std::string rng;
{
std::ostringstream os;
os << rngStem << "." << traj;
rng = os.str();
}
std::string config;
{
std::ostringstream os;
os << configStem << "." << traj;
config = os.str();
}
// Save always in double precision
BinarySimpleUnmunger<sobj_double, sobj> munge;
BinaryIO::writeRNGSerial(sRNG, pRNG, rng, 0);
BinaryIO::writeObjectParallel<vobj, sobj_double>(U, config, munge, 0, format);
}
};
void CheckpointRestore(int traj, Field &U, GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
void TrajectoryComplete(int traj, Field &U, GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
if ((traj % SaveInterval) == 0) {
std::string rng;
{
std::ostringstream os;
@ -136,11 +79,42 @@ struct BinarySimpleMunger {
config = os.str();
}
BinarySimpleMunger<sobj_double, sobj> munge;
BinaryIO::readRNGSerial(sRNG, pRNG, rng, header);
BinaryIO::readObjectParallel<vobj, sobj_double>(U, config, munge, 0, format);
};
BinaryIO::BinarySimpleUnmunger<sobj_double, sobj> munge;
truncate(rng);
BinaryIO::writeRNGSerial(sRNG, pRNG, rng, 0);
truncate(config);
uint32_t csum = BinaryIO::writeObjectParallel<vobj, sobj_double>(
U, config, munge, 0, format);
std::cout << GridLogMessage << "Written Binary Configuration " << config
<< " checksum " << std::hex << csum << std::dec << std::endl;
}
};
void CheckpointRestore(int traj, Field &U, GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
std::string rng;
{
std::ostringstream os;
os << rngStem << "." << traj;
rng = os.str();
}
std::string config;
{
std::ostringstream os;
os << configStem << "." << traj;
config = os.str();
}
BinaryIO::BinarySimpleMunger<sobj_double, sobj> munge;
BinaryIO::readRNGSerial(sRNG, pRNG, rng, 0);
uint32_t csum = BinaryIO::readObjectParallel<vobj, sobj_double>(
U, config, munge, 0, format);
std::cout << GridLogMessage << "Read Binary Configuration " << config
<< " checksum " << std::hex << csum << std::dec << std::endl;
};
};
}
}
#endif