/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/parallelIO/NerscIO.h
Copyright (C) 2015
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <algorithm>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <map>
#include <unistd.h>
#include <sys/utsname.h>
#include <pwd.h>
namespace Grid {
///////////////////////////////////////////////////////
// Precision mapping
///////////////////////////////////////////////////////
template<class vobj> static std::string getFormatString (void)
{
std::string format;
typedef typename getPrecision<vobj>::real_scalar_type stype;
if ( sizeof(stype) == sizeof(float) ) {
format = std::string("IEEE32BIG");
}
if ( sizeof(stype) == sizeof(double) ) {
format = std::string("IEEE64BIG");
}
return format;
}
////////////////////////////////////////////////////////////////////////////////
// header specification/interpretation
////////////////////////////////////////////////////////////////////////////////
class FieldMetaData : Serializable {
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(FieldMetaData,
int, nd,
std::vector<int>, dimension,
std::vector<std::string>, boundary,
int, data_start,
std::string, hdr_version,
std::string, storage_format,
double, link_trace,
double, plaquette,
uint32_t, checksum,
uint32_t, scidac_checksuma,
uint32_t, scidac_checksumb,
unsigned int, sequence_number,
std::string, data_type,
std::string, ensemble_id,
std::string, ensemble_label,
std::string, ildg_lfn,
std::string, creator,
std::string, creator_hardware,
std::string, creation_date,
std::string, archive_date,
std::string, floating_point);
FieldMetaData(void) {
nd=4;
dimension.resize(4);
boundary.resize(4);
scidac_checksuma=0;
scidac_checksumb=0;
checksum=0;
}
};
namespace QCD {
using namespace Grid;
//////////////////////////////////////////////////////////////////////
// Bit and Physical Checksumming and QA of data
//////////////////////////////////////////////////////////////////////
inline void GridMetaData(GridBase *grid,FieldMetaData &header)
{
int nd = grid->_ndimension;
header.nd = nd;
header.dimension.resize(nd);
header.boundary.resize(nd);
header.data_start = 0;
for(int d=0;d<nd;d++) {
header.dimension[d] = grid->_fdimensions[d];
}
for(int d=0;d<nd;d++) {
header.boundary[d] = std::string("PERIODIC");
}
}
inline void MachineCharacteristics(FieldMetaData &header)
{
// Who
struct passwd *pw = getpwuid (getuid());
if (pw) header.creator = std::string(pw->pw_name);
// When
std::time_t t = std::time(nullptr);
std::tm tm_ = *std::localtime(&t);
std::ostringstream oss;
// oss << std::put_time(&tm_, "%c %Z");
header.creation_date = oss.str();
header.archive_date = header.creation_date;
// What
struct utsname name; uname(&name);
header.creator_hardware = std::string(name.nodename)+"-";
header.creator_hardware+= std::string(name.machine)+"-";
header.creator_hardware+= std::string(name.sysname)+"-";
header.creator_hardware+= std::string(name.release);
}
#define dump_meta_data(field, s) \
s << "BEGIN_HEADER" << std::endl; \
s << "HDR_VERSION = " << field.hdr_version << std::endl; \
s << "DATATYPE = " << field.data_type << std::endl; \
s << "STORAGE_FORMAT = " << field.storage_format << std::endl; \
for(int i=0;i<4;i++){ \
s << "DIMENSION_" << i+1 << " = " << field.dimension[i] << std::endl ; \
} \
s << "LINK_TRACE = " << std::setprecision(10) << field.link_trace << std::endl; \
s << "PLAQUETTE = " << std::setprecision(10) << field.plaquette << std::endl; \
for(int i=0;i<4;i++){ \
s << "BOUNDARY_"<<i+1<<" = " << field.boundary[i] << std::endl; \
} \
\
s << "CHECKSUM = "<< std::hex << std::setw(10) << field.checksum << std::dec<<std::endl; \
s << "SCIDAC_CHECKSUMA = "<< std::hex << std::setw(10) << field.scidac_checksuma << std::dec<<std::endl; \
s << "SCIDAC_CHECKSUMB = "<< std::hex << std::setw(10) << field.scidac_checksumb << std::dec<<std::endl; \
s << "ENSEMBLE_ID = " << field.ensemble_id << std::endl; \
s << "ENSEMBLE_LABEL = " << field.ensemble_label << std::endl; \
s << "SEQUENCE_NUMBER = " << field.sequence_number << std::endl; \
s << "CREATOR = " << field.creator << std::endl; \
s << "CREATOR_HARDWARE = "<< field.creator_hardware << std::endl; \
s << "CREATION_DATE = " << field.creation_date << std::endl; \
s << "ARCHIVE_DATE = " << field.archive_date << std::endl; \
s << "FLOATING_POINT = " << field.floating_point << std::endl; \
s << "END_HEADER" << std::endl;
template<class vobj> inline void PrepareMetaData(Lattice<vobj> & field, FieldMetaData &header)
{
GridBase *grid = field._grid;
std::string format = getFormatString<vobj>();
header.floating_point = format;
header.checksum = 0x0; // Nersc checksum unused in ILDG, Scidac
GridMetaData(grid,header);
MachineCharacteristics(header);
}
inline void GaugeStatistics(Lattice<vLorentzColourMatrixF> & data,FieldMetaData &header)
{
// How to convert data precision etc...
header.link_trace=Grid::QCD::WilsonLoops<PeriodicGimplF>::linkTrace(data);
header.plaquette =Grid::QCD::WilsonLoops<PeriodicGimplF>::avgPlaquette(data);
}
inline void GaugeStatistics(Lattice<vLorentzColourMatrixD> & data,FieldMetaData &header)
{
// How to convert data precision etc...
header.link_trace=Grid::QCD::WilsonLoops<PeriodicGimplD>::linkTrace(data);
header.plaquette =Grid::QCD::WilsonLoops<PeriodicGimplD>::avgPlaquette(data);
}
template<> inline void PrepareMetaData<vLorentzColourMatrixF>(Lattice<vLorentzColourMatrixF> & field, FieldMetaData &header)
{
GridBase *grid = field._grid;
std::string format = getFormatString<vLorentzColourMatrixF>();
header.floating_point = format;
header.checksum = 0x0; // Nersc checksum unused in ILDG, Scidac
GridMetaData(grid,header);
GaugeStatistics(field,header);
MachineCharacteristics(header);
}
template<> inline void PrepareMetaData<vLorentzColourMatrixD>(Lattice<vLorentzColourMatrixD> & field, FieldMetaData &header)
{
GridBase *grid = field._grid;
std::string format = getFormatString<vLorentzColourMatrixD>();
header.floating_point = format;
header.checksum = 0x0; // Nersc checksum unused in ILDG, Scidac
GridMetaData(grid,header);
GaugeStatistics(field,header);
MachineCharacteristics(header);
}
//////////////////////////////////////////////////////////////////////
// Utilities ; these are QCD aware
//////////////////////////////////////////////////////////////////////
inline void reconstruct3(LorentzColourMatrix & cm)
{
const int x=0;
const int y=1;
const int z=2;
for(int mu=0;mu<Nd;mu++){
cm(mu)()(2,x) = adj(cm(mu)()(0,y)*cm(mu)()(1,z)-cm(mu)()(0,z)*cm(mu)()(1,y)); //x= yz-zy
cm(mu)()(2,y) = adj(cm(mu)()(0,z)*cm(mu)()(1,x)-cm(mu)()(0,x)*cm(mu)()(1,z)); //y= zx-xz
cm(mu)()(2,z) = adj(cm(mu)()(0,x)*cm(mu)()(1,y)-cm(mu)()(0,y)*cm(mu)()(1,x)); //z= xy-yx
}
}
////////////////////////////////////////////////////////////////////////////////
// Some data types for intermediate storage
////////////////////////////////////////////////////////////////////////////////
template<typename vtype> using iLorentzColour2x3 = iVector<iVector<iVector<vtype, Nc>, 2>, Nd >;
typedef iLorentzColour2x3<Complex> LorentzColour2x3;
typedef iLorentzColour2x3<ComplexF> LorentzColour2x3F;
typedef iLorentzColour2x3<ComplexD> LorentzColour2x3D;
/////////////////////////////////////////////////////////////////////////////////
// Simple classes for precision conversion
/////////////////////////////////////////////////////////////////////////////////
template <class fobj, class sobj>
struct BinarySimpleUnmunger {
typedef typename getPrecision<fobj>::real_scalar_type fobj_stype;
typedef typename getPrecision<sobj>::real_scalar_type sobj_stype;
void operator()(sobj &in, fobj &out) {
// take word by word and transform accoding to the status
fobj_stype *out_buffer = (fobj_stype *)&out;
sobj_stype *in_buffer = (sobj_stype *)∈
size_t fobj_words = sizeof(out) / sizeof(fobj_stype);
size_t sobj_words = sizeof(in) / 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
}
};
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()(fobj &in, sobj &out) {
// take word by word and transform accoding to the status
fobj_stype *in_buffer = (fobj_stype *)∈
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
}
};
template<class fobj,class sobj>
struct GaugeSimpleMunger{
void operator()(fobj &in, sobj &out) {
for (int mu = 0; mu < Nd; mu++) {
for (int i = 0; i < Nc; i++) {
for (int j = 0; j < Nc; j++) {
out(mu)()(i, j) = in(mu)()(i, j);
}}
}
};
};
template <class fobj, class sobj>
struct GaugeSimpleUnmunger {
void operator()(sobj &in, fobj &out) {
for (int mu = 0; mu < Nd; mu++) {
for (int i = 0; i < Nc; i++) {
for (int j = 0; j < Nc; j++) {
out(mu)()(i, j) = in(mu)()(i, j);
}}
}
};
};
template<class fobj,class sobj>
struct Gauge3x2munger{
void operator() (fobj &in,sobj &out){
for(int mu=0;mu<Nd;mu++){
for(int i=0;i<2;i++){
for(int j=0;j<3;j++){
out(mu)()(i,j) = in(mu)(i)(j);
}}
}
reconstruct3(out);
}
};
template<class fobj,class sobj>
struct Gauge3x2unmunger{
void operator() (sobj &in,fobj &out){
for(int mu=0;mu<Nd;mu++){
for(int i=0;i<2;i++){
for(int j=0;j<3;j++){
out(mu)(i)(j) = in(mu)()(i,j);
}}
}
}
};
}
}