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402 lines
14 KiB
C++
402 lines
14 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/parallelIO/IldgIO.h
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Copyright (C) 2015
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution
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directory
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*************************************************************************************/
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/* END LEGAL */
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#ifndef GRID_ILDG_IO_H
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#define GRID_ILDG_IO_H
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#include <algorithm>
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#include <fstream>
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#include <iomanip>
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#include <iostream>
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#include <map>
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#include <pwd.h>
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#include <sys/utsname.h>
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#include <unistd.h>
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#ifdef HAVE_LIME
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extern "C" { // for linkage
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#include "lime.h"
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}
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// Unused SCIDAC records names
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// SCIDAC_PRIVATE_FILE_XML "scidac-private-file-xml"
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// SCIDAC_SITELIST "scidac-sitelist"
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// SCIDAC_FILE_XML "scidac-file-xml"
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// SCIDAC_RIVATE_RECORD_XML "scidac-private-record-xml"
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// SCIDAC_RECORD_XML "scidac-record-xml"
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// SCIDAC_BINARY_DATA "scidac-binary-data"
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//
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// Scidac checksum: CRC32 every site, xor reduce some hash of this.
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// https://github.com/usqcd-software/qio/blob/master/lib/dml/DML_utils.c
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namespace Grid {
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namespace QCD {
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class IldgIO : public BinaryIO {
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public:
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static int createHeader(std::string message, int MB, int ME, size_t PayloadSize, LimeWriter* L)
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{
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LimeRecordHeader *h;
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h = limeCreateHeader(MB, ME, const_cast<char *>(message.c_str()), PayloadSize);
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assert(limeWriteRecordHeader(h, L) >= 0);
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limeDestroyHeader(h);
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return LIME_SUCCESS;
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}
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template<class serialisable_object>
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static void writeLimeObject(int MB,int ME,serialisable_object &object,std::string object_name,std::string record_name, LimeWriter *LimeW)
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{
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std::string xmlstring;
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{
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XmlWriter WR("","");
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write(WR,object_name,object);
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xmlstring = WR.XmlString();
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}
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uint64_t nbytes = xmlstring.size();
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LimeRecordHeader *h = limeCreateHeader(MB, ME,(char *)record_name.c_str(), nbytes);
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assert(limeWriteRecordHeader(h, LimeW)>=0);
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assert(limeWriteRecordData(&xmlstring[0], &nbytes, LimeW)>=0);
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limeWriterCloseRecord(LimeW);
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limeDestroyHeader(h);
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}
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static unsigned int writeHeader(FieldMetaData &header, LimeWriter *LimeW) {
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uint64_t nbytes;
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ildgFormat ildgfmt ;
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usqcdInfo info;
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//////////////////////////////////////////////////////
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// Fill ILDG header data struct
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//////////////////////////////////////////////////////
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ildgfmt.field = std::string("su3gauge");
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ildgfmt.precision = 64;
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ildgfmt.version = 1.0;
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ildgfmt.lx = header.dimension[0];
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ildgfmt.ly = header.dimension[1];
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ildgfmt.lz = header.dimension[2];
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ildgfmt.lt = header.dimension[3];
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assert(header.nd==4);
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assert(header.nd==header.dimension.size());
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info.version=1.0;
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info.plaq = header.plaquette;
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info.linktr = header.link_trace;
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// Following scidac file downloaded from NERSC under MILC
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// Begin message, keep open on successive records
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//Message 1
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// Type: scidac-private-file-xml <scidacFile><version>1.1</version><spacetime>4</spacetime><dims>16 16 16 48 </dims><volfmt>0</volfmt></scidacFile>
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// Type: scidac-file-xml <title>MILC ILDG archival gauge configuration</title>
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//Message 2
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// Type: scidac-private-record-xml <scidacRecord><version>1.0</version><date>Thu May 11 00:11:33 2006 UTC</date><globaldata>0</globaldata>
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// <datatype>QDP_F3_ColorMatrix</datatype><precision>F</precision><colors>3</colors><typesize>72</typesize><datacount>4</datacount></scidacRecord>
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// Type: scidac-record-xml
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// Type: ildg-format
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// Type: ildg-data-lfn
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// Type: ildg-binary-data
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// Type: scidac-checksum
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writeLimeObject(1,0,header ,std::string("FieldMetaData"),std::string(GRID_FORMAT),LimeW);
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writeLimeObject(0,0,info ,std::string("usqcdInfo" ),std::string(USQCD_INFO ),LimeW);
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writeLimeObject(0,0,ildgfmt,std::string("ildgFormat") ,std::string(ILDG_FORMAT),LimeW);
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// LFN is not a serializable object
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{
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std::string LFN = header.ildg_lfn;
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uint64_t PayloadSize = LFN.size();
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createHeader(ILDG_DATA_LFN, 0 , 0, PayloadSize, LimeW);
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limeWriteRecordData(const_cast<char*>(LFN.c_str()), &PayloadSize, LimeW);
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limeWriterCloseRecord(LimeW);
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}
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return 0;
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}
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template <class vsimd>
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static void writeConfiguration(std::string filename,Lattice<iLorentzColourMatrix<vsimd> > &Umu, std::string format) {
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FILE *File = fopen(filename.c_str(), "w");
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LimeWriter *LimeW = limeCreateWriter(File);
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typedef Lattice<iLorentzColourMatrix<vsimd> > GaugeField;
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typedef iLorentzColourMatrix<vsimd> vobj;
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typedef typename vobj::scalar_object sobj;
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typedef LorentzColourMatrixD fobj;
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GridBase * grid = Umu._grid;
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////////////////////////////////////////
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// fill the headers
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////////////////////////////////////////
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FieldMetaData header;
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GridMetaData(grid,header);
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GaugeStatistics<GaugeField>(Umu,header);
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MachineCharacteristics(header);
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assert( (format=="IEEE64BIG") || (format=="IEEE32BIG"));
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header.floating_point = format;
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header.checksum = 0x0; // unused in ILDG
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writeHeader(header,LimeW);
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////////////////////////////////////////
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// Write data record header
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////////////////////////////////////////
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uint64_t PayloadSize = sizeof(fobj) * Umu._grid->_gsites;
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createHeader(ILDG_BINARY_DATA, 0, 0, PayloadSize, LimeW);
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off_t offset = ftell(File);
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uint32_t nersc_csum,scidac_csuma,scidac_csumb;
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GaugeSimpleMunger<sobj, fobj> munge;
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BinaryIO::writeLatticeObject<vobj, fobj >(Umu, filename, munge, offset, header.floating_point,
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nersc_csum,scidac_csuma,scidac_csumb);
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limeWriterCloseRecord(LimeW);
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////////////////////////////////////////
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// Write checksum element, propagaing forward from the BinaryIO
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////////////////////////////////////////
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scidacChecksum checksum;
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checksum.suma= scidac_csuma;
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checksum.sumb= scidac_csumb;
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// std::cout << " writing scidac checksums "<<std::hex<<scidac_csuma<<"/"<<scidac_csumb<<std::dec<<std::endl;
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writeLimeObject(0,1,checksum,std::string("scidacChecksum" ),std::string(SCIDAC_CHECKSUM),LimeW);
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fclose(File);
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}
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template <class vsimd>
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static void readConfiguration(std::string filename,Lattice<iLorentzColourMatrix<vsimd> > &Umu, FieldMetaData &FieldMetaData_) {
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typedef Lattice<iLorentzColourMatrix<vsimd> > GaugeField;
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typedef LorentzColourMatrixD sobjd;
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typedef LorentzColourMatrixF sobjf;
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typedef iLorentzColourMatrix<vsimd> itype;
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typedef LorentzColourMatrix sobj;
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GridBase *grid = Umu._grid;
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std::vector<int> dims = Umu._grid->FullDimensions();
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assert(dims.size()==4);
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FILE *File = fopen(filename.c_str(), "r");
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LimeReader *LimeR = limeCreateReader(File);
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// Metadata holders
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ildgFormat ildgFormat_ ;
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std::string ildgLFN_ ;
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scidacChecksum scidacChecksum_;
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usqcdInfo usqcdInfo_ ;
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// track what we read from file
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int found_ildgFormat =0;
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int found_ildgLFN =0;
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int found_scidacChecksum=0;
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int found_usqcdInfo =0;
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int found_ildgBinary =0;
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int found_FieldMetaData =0;
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uint32_t nersc_csum;
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uint32_t scidac_csuma;
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uint32_t scidac_csumb;
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// Binary format
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std::string format;
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//////////////////////////////////////////////////////////////////////////
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// Loop over all records
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// -- Order is poorly guaranteed except ILDG header preceeds binary section.
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// -- Run like an event loop.
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// -- Impose trust hierarchy. Grid takes precedence & look for ILDG, and failing
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// that Scidac.
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// -- Insist on Scidac checksum record.
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//////////////////////////////////////////////////////////////////////////
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while ( limeReaderNextRecord(LimeR) == LIME_SUCCESS ) {
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uint64_t nbytes = limeReaderBytes(LimeR);//size of this record (configuration)
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//////////////////////////////////////////////////////////////////
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// If not BINARY_DATA read a string and parse
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//////////////////////////////////////////////////////////////////
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if ( strncmp(limeReaderType(LimeR), ILDG_BINARY_DATA,strlen(ILDG_BINARY_DATA) ) ) {
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// Copy out the string
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std::vector<char> xmlc(nbytes+1,'\0');
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limeReaderReadData((void *)&xmlc[0], &nbytes, LimeR);
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std::cout << GridLogMessage<< "Non binary record :" <<limeReaderType(LimeR) <<std::endl; //<<"\n"<<(&xmlc[0])<<std::endl;
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//////////////////////////////////
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// ILDG format record
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if ( !strncmp(limeReaderType(LimeR), ILDG_FORMAT,strlen(ILDG_FORMAT)) ) {
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XmlReader RD(&xmlc[0],"");
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read(RD,"ildgFormat",ildgFormat_);
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if ( ildgFormat_.precision == 64 ) format = std::string("IEEE64BIG");
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if ( ildgFormat_.precision == 32 ) format = std::string("IEEE32BIG");
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// std::cout << "This is an ILDG format record : "<<format<<std::endl;
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assert( ildgFormat_.lx == dims[0]);
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assert( ildgFormat_.ly == dims[1]);
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assert( ildgFormat_.lz == dims[2]);
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assert( ildgFormat_.lt == dims[3]);
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found_ildgFormat = 1;
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}
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if ( !strncmp(limeReaderType(LimeR), ILDG_DATA_LFN,strlen(ILDG_DATA_LFN)) ) {
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FieldMetaData_.ildg_lfn = std::string(&xmlc[0]);
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// std::cout << "ILDG logical file name "<< FieldMetaData_.ildg_lfn << std::endl;
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found_ildgLFN = 1;
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}
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if ( !strncmp(limeReaderType(LimeR), GRID_FORMAT,strlen(ILDG_FORMAT)) ) {
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XmlReader RD(&xmlc[0],"");
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read(RD,"FieldMetaData",FieldMetaData_);
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// std::cout << "Grid header found : format is "<<FieldMetaData_.floating_point<<std::endl;
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format = FieldMetaData_.floating_point;
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assert(FieldMetaData_.dimension[0] == dims[0]);
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assert(FieldMetaData_.dimension[1] == dims[1]);
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assert(FieldMetaData_.dimension[2] == dims[2]);
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assert(FieldMetaData_.dimension[3] == dims[3]);
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found_FieldMetaData = 1;
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}
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if ( !strncmp(limeReaderType(LimeR), USQCD_INFO,strlen(USQCD_INFO)) ) {
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XmlReader RD(&xmlc[0],"");
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read(RD,USQCD_INFO,usqcdInfo_);
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// std::cout << "USQCD info record found " <<std::endl;
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found_usqcdInfo = 1;
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}
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if ( !strncmp(limeReaderType(LimeR), SCIDAC_CHECKSUM,strlen(SCIDAC_CHECKSUM)) ) {
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XmlReader RD(&xmlc[0],"");
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read(RD,"scidacChecksum",scidacChecksum_);
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FieldMetaData_.scidac_checksuma = scidacChecksum_.suma;
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FieldMetaData_.scidac_checksumb = scidacChecksum_.sumb;
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//std::cout << " Read Out "<<scidacChecksum_.version<<"/"<< scidacChecksum_.suma<<"/"<<scidacChecksum_.sumb<<std::endl;
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found_scidacChecksum = 1;
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}
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} else {
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/////////////////////////////////
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// Binary data
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/////////////////////////////////
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std::cout << GridLogMessage << ILDG_BINARY_DATA << std::endl;
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off_t offset= ftell(File);
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GaugeSimpleMunger<sobjd, sobj> munge;
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BinaryIO::readLatticeObject< itype, sobjd >(Umu, filename, munge, offset, format,
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nersc_csum,scidac_csuma,scidac_csumb);
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found_ildgBinary = 1;
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}
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}
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//////////////////////////////////////////////////////
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// Minimally must find binary segment and checksum
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//////////////////////////////////////////////////////
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assert(found_ildgBinary);
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assert(found_scidacChecksum);
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// Must find something with the lattice dimensions
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assert(found_FieldMetaData||found_ildgFormat);
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if ( found_FieldMetaData ) {
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std::cout << GridLogMessage<<"a Grid MetaData was record found: configuration was probably written by Grid ! Yay ! "<<std::endl;
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// std::cout << "Read Grid Plaqette "<<FieldMetaData_.plaquette<<std::endl;
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// std::cout << "Read Grid LinkTrace "<<FieldMetaData_.link_trace<<std::endl;
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} else {
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assert(found_ildgFormat);
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assert ( ildgFormat_.field == std::string("su3gauge") );
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///////////////////////////////////////////////////////////////////////////////////////
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// Populate our Grid metadata as best we can
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///////////////////////////////////////////////////////////////////////////////////////
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std::ostringstream vers; vers << ildgFormat_.version;
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FieldMetaData_.hdr_version = vers.str();
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FieldMetaData_.data_type = std::string("4D_SU3_GAUGE_3X3");
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assert(FieldMetaData_.nd==4);
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assert(FieldMetaData_.dimension.size()==4);
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FieldMetaData_.dimension[0] = ildgFormat_.lx ;
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FieldMetaData_.dimension[1] = ildgFormat_.ly ;
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FieldMetaData_.dimension[2] = ildgFormat_.lz ;
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FieldMetaData_.dimension[3] = ildgFormat_.lt ;
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if ( found_usqcdInfo ) {
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FieldMetaData_.plaquette = usqcdInfo_.plaq;
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FieldMetaData_.link_trace= usqcdInfo_.linktr;
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// std::cout << "This configuration was probably written by USQCD and not Grid "<<std::endl;
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// std::cout << "Read USQCD Plaquette "<<FieldMetaData_.plaquette<<std::endl;
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// std::cout << "Read USQCD LinkTrace "<<FieldMetaData_.link_trace<<std::endl;
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} else {
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FieldMetaData_.plaquette = 0.0;
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FieldMetaData_.link_trace= 0.0;
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std::cout << "Uhoh... This configuration is unsafe and contains no recognised checksum or physics records that can verify it !!! "<<std::endl;
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}
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}
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if ( found_scidacChecksum ) {
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assert( scidac_csuma ==FieldMetaData_.scidac_checksuma);
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assert( scidac_csumb ==FieldMetaData_.scidac_checksumb);
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std::cout << GridLogMessage<<"SciDAC checksums match " << std::endl;
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}
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if ( found_FieldMetaData || found_usqcdInfo ) {
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FieldMetaData checker;
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GaugeStatistics<GaugeField>(Umu,checker);
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assert(fabs(checker.plaquette - FieldMetaData_.plaquette )<1.0e-5);
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assert(fabs(checker.link_trace - FieldMetaData_.link_trace)<1.0e-5);
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std::cout << GridLogMessage<<"Plaquette and link trace match " << std::endl;
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}
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}
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// format for RNG? Now just binary out
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};
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}
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}
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//HAVE_LIME
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#endif
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#endif
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