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IO working multiple nodes again. Strategy of all nodes writing metadata is unsafe.

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Only one rank should do this. must identify this rank. Means pass communicator to the
Objects.
This commit is contained in:
paboyle 2017-07-02 23:33:48 +01:00
parent a2d3643634
commit dee68fc728
4 changed files with 28 additions and 5 deletions
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8
lib/parallelIO/IldgIO.h
View File

@ -258,10 +258,13 @@ class GridLimeReader : public BinaryIO {
if ( !strncmp(limeReaderType(LimeR), record_name.c_str(),strlen(record_name.c_str()) ) ) {
// std::cout << GridLogMessage<< " readLimeObject matches ! " <<std::endl;
std::cout << GridLogMessage<< " readLimeObject matches ! " << record_name <<std::endl;
std::vector<char> xmlc(nbytes+1,'\0');
limeReaderReadData((void *)&xmlc[0], &nbytes, LimeR);
std::cout << GridLogMessage<< " readLimeObject matches XML " << &xmlc[0] <<std::endl;
XmlReader RD(&xmlc[0],"");
read(RD,object_name,object);
return;
@ -276,8 +279,9 @@ class GridLimeWriter : public BinaryIO {
public:
///////////////////////////////////////////////////
// FIXME: format for RNG? Now just binary out instead
// FIXME: collective calls or not ?
// : must know if I am the I/O boss
///////////////////////////////////////////////////
FILE *File;
LimeWriter *LimeW;
std::string filename;

1
lib/parallelIO/IldgIOtypes.h
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@ -66,6 +66,7 @@ namespace Grid {
struct emptyUserRecord : Serializable {
GRID_SERIALIZABLE_CLASS_MEMBERS(emptyUserRecord,int,dummy);
emptyUserRecord() { dummy=0; };
};
////////////////////////

3
lib/parallelIO/MetaData.h
View File

@ -85,6 +85,9 @@ namespace Grid {
nd=4;
dimension.resize(4);
boundary.resize(4);
scidac_checksuma=0;
scidac_checksumb=0;
checksum=0;
}
};

21
tests/solver/Test_dwf_mrhs_cg.cc
View File

@ -95,42 +95,57 @@ int main (int argc, char ** argv)
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
emptyUserRecord record;
std::string file("./scratch.scidac");
std::string filef("./scratch.scidac.ferm");
int me = UGrid->ThisRank();
LatticeGaugeField s_Umu(SGrid);
FermionField s_src(SFGrid);
FermionField s_res(SFGrid);
{
FGrid->Barrier();
ScidacWriter _ScidacWriter;
_ScidacWriter.open(file);
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
std::cout << GridLogMessage << " Writing out gauge field "<<std::endl;
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
_ScidacWriter.writeScidacFieldRecord(Umu,record);
_ScidacWriter.close();
FGrid->Barrier();
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
std::cout << GridLogMessage << " Reading in gauge field "<<std::endl;
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
ScidacReader _ScidacReader;
_ScidacReader.open(file);
_ScidacReader.readScidacFieldRecord(s_Umu,record);
_ScidacReader.close();
FGrid->Barrier();
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
std::cout << GridLogMessage << " Read in gauge field "<<std::endl;
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
}
{
for(int n=0;n<nrhs;n++){
FGrid->Barrier();
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
std::cout << GridLogMessage << " Writing out record "<<n<<std::endl;
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
ScidacWriter _ScidacWriter;
_ScidacWriter.open(file);
_ScidacWriter.open(filef);
_ScidacWriter.writeScidacFieldRecord(src[n],record);
_ScidacWriter.close();
FGrid->Barrier();
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
std::cout << GridLogMessage << " Reading back in the single process view "<<std::endl;
std::cout << GridLogMessage << "****************************************************************** "<<std::endl;
if ( n==me ) {
ScidacReader _ScidacReader;
_ScidacReader.open(file);
_ScidacReader.open(filef);
_ScidacReader.readScidacFieldRecord(s_src,record);
_ScidacReader.close();
}