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Adding a better controlled threading class, preparing to

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force in deterministic reduction.
This commit is contained in:
Peter Boyle
2015-05-11 18:59:03 +01:00
parent f5dcca7b1b
commit 22d384b07d
14 changed files with 199 additions and 97 deletions
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125
lib/Grid_init.cc
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@ -1,5 +1,5 @@
/****************************************************************************/
/* PAB: Signal magic. Processor state dump is x86-64 specific */
/* pab: Signal magic. Processor state dump is x86-64 specific */
/****************************************************************************/
#include <stdlib.h>
@ -23,23 +23,25 @@
namespace Grid {
void Grid_quiesce_nodes(void)
{
#ifdef GRID_COMMS_MPI
int me;
MPI_Comm_rank(MPI_COMM_WORLD,&me);
if ( me ) {
std::cout.setstate(std::ios::badbit);
}
#endif
}
void Grid_unquiesce_nodes(void)
{
#ifdef GRID_COMMS_MPI
std::cout.clear();
#endif
}
//////////////////////////////////////////////////////
// Convenience functions to access stadard command line arg
// driven parallelism controls
//////////////////////////////////////////////////////
static std::vector<int> Grid_default_simd;
static std::vector<int> Grid_default_latt;
static std::vector<int> Grid_default_mpi;
int GridThread::_threads;
const std::vector<int> &GridDefaultSimd(void) {return Grid_default_simd;};
const std::vector<int> &GridDefaultLatt(void) {return Grid_default_latt;};
const std::vector<int> &GridDefaultMpi(void) {return Grid_default_mpi;};
////////////////////////////////////////////////////////////
// Command line parsing assist for stock controls
////////////////////////////////////////////////////////////
std::string GridCmdOptionPayload(char ** begin, char ** end, const std::string & option)
{
char ** itr = std::find(begin, end, option);
@ -53,15 +55,6 @@ bool GridCmdOptionExists(char** begin, char** end, const std::string& option)
{
return std::find(begin, end, option) != end;
}
void Grid_init(int *argc,char ***argv)
{
#ifdef GRID_COMMS_MPI
MPI_Init(argc,argv);
#endif
// Parse command line args.
Grid_quiesce_nodes();
}
void GridCmdOptionIntVector(std::string &str,std::vector<int> & vec)
{
@ -70,7 +63,7 @@ void GridCmdOptionIntVector(std::string &str,std::vector<int> & vec)
int i;
while (ss >> i){
vec.push_back(i);
if (ss.peek() == ',')
if(std::ispunct(ss.peek()))
ss.ignore();
}
return;
@ -94,38 +87,74 @@ void GridParseLayout(char **argv,int argc,
simd=std::vector<int>({1,2,2,2});
#endif
GridThread::SetMaxThreads();
std::string arg;
if( GridCmdOptionExists(argv,argv+argc,"--mpi") ){
arg = GridCmdOptionPayload(argv,argv+argc,"--mpi");
GridCmdOptionIntVector(arg,mpi);
std::cout<<"MPI ";
for(int i=0;i<mpi.size();i++){
std::cout<<mpi[i]<<" ";
}
std::cout<<std::endl;
}
if( GridCmdOptionExists(argv,argv+argc,"--simd") ){
arg= GridCmdOptionPayload(argv,argv+argc,"--simd");
GridCmdOptionIntVector(arg,simd);
std::cout<<"SIMD ";
for(int i=0;i<simd.size();i++){
std::cout<<simd[i]<<" ";
}
std::cout<<std::endl;
}
if( GridCmdOptionExists(argv,argv+argc,"--grid") ){
arg= GridCmdOptionPayload(argv,argv+argc,"--grid");
GridCmdOptionIntVector(arg,latt);
std::cout<<"Grid ";
for(int i=0;i<latt.size();i++){
std::cout<<latt[i]<<" ";
}
std::cout<<std::endl;
}
if( GridCmdOptionExists(argv,argv+argc,"--omp") ){
std::vector<int> ompthreads(0);
arg= GridCmdOptionPayload(argv,argv+argc,"--omp");
GridCmdOptionIntVector(arg,ompthreads);
assert(ompthreads.size()==1);
GridThread::SetThreads(ompthreads[0]);
}
}
/////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////
void Grid_init(int *argc,char ***argv)
{
#ifdef GRID_COMMS_MPI
MPI_Init(argc,argv);
#endif
// Parse command line args.
if( GridCmdOptionExists(*argv,*argv+*argc,"--debug-signals") ){
Grid_debug_handler_init();
}
if( !GridCmdOptionExists(*argv,*argv+*argc,"--debug-stdout") ){
Grid_quiesce_nodes();
}
GridParseLayout(*argv,*argc,
Grid_default_latt,
Grid_default_simd,
Grid_default_mpi);
}
////////////////////////////////////////////////////////////
// Verbose limiter on MPI tasks
////////////////////////////////////////////////////////////
void Grid_quiesce_nodes(void)
{
#ifdef GRID_COMMS_MPI
int me;
MPI_Comm_rank(MPI_COMM_WORLD,&me);
if ( me ) {
std::cout.setstate(std::ios::badbit);
}
#endif
}
void Grid_unquiesce_nodes(void)
{
#ifdef GRID_COMMS_MPI
std::cout.clear();
#endif
}
void Grid_finalize(void)
{
@ -146,14 +175,14 @@ void * Grid_backtrace_buffer[_NBACKTRACE];
void Grid_sa_signal_handler(int sig,siginfo_t *si,void * ptr)
{
printf("Caught signal %d\n",si->si_signo);
printf(" mem address %lx\n",(uint64_t)si->si_addr);
printf(" mem address %llx\n",(unsigned long long)si->si_addr);
printf(" code %d\n",si->si_code);
#ifdef __X86_64
ucontext_t * uc= (ucontext_t *)ptr;
struct sigcontext *sc = (struct sigcontext *)&uc->uc_mcontext;
printf(" instruction %llx\n",(uint64_t)sc->rip);
#define REG(A) printf(" %s %lx\n",#A, sc-> A);
printf(" instruction %llx\n",(unsigned long long)sc->rip);
#define REG(A) printf(" %s %lx\n",#A,sc-> A);
REG(rdi);
REG(rsi);
REG(rbp);