nrnmain.cpp

Go to the documentation of this file.

#include <nrnconf.h>
#include <stdio.h>
#include <string.h>
#include "../nrncvode/nrnneosm.h"
#include <nrnmpi.h>
#include <errno.h>
#include "isoc99.h"
 
extern "C" int nrn_isdouble(double*, double, double);
extern int ivocmain(int, const char**, const char**);
extern int nrn_main_launch;
extern int nrn_noauto_dlopen_nrnmech;
#if NRNMPI_DYNAMICLOAD
extern void nrnmpi_stubs();
extern char* nrnmpi_load(int is_python);
#endif
#if NRNMPI
extern "C" void nrnmpi_init(int nrnmpi_under_nrncontrol, int* pargc, char*** pargv);
#endif
 
int main(int argc, char** argv, char** env) {
    nrn_isdouble(0, 0, 0);
    nrn_main_launch = 1;
 
#if defined(AUTO_DLOPEN_NRNMECH) && AUTO_DLOPEN_NRNMECH == 0
    nrn_noauto_dlopen_nrnmech = 1;
#endif
 
#if 0
printf("argc=%d\n", argc);
for (int i=0; i < argc; ++i) {
printf("argv[%d]=|%s|\n", i, argv[i]);
}
#endif
#if NRNMPI
#if NRNMPI_DYNAMICLOAD
    nrnmpi_stubs();
    for (int i = 0; i < argc; ++i) {
        if (strcmp("-mpi", argv[i]) == 0) {
            char* pmes;
            pmes = nrnmpi_load(0);
            if (pmes) {
                printf("%s\n", pmes);
                exit(1);
            }
            break;
        }
    }
#endif
    nrnmpi_init(1, &argc, &argv);  // may change argc and argv
#endif
    errno = 0;
    return ivocmain(argc, (const char**) argv, (const char**) env);
}
 
#if USENCS
void nrn2ncs_outputevent(int, double) {}
#endif
 
// moving following to src/oc/ockludge.cpp since on
// Darwin Kernel Version 8.9.1 on apple i686 (and the newest config.guess
// thinks it is a i386, but that is a different story)
// including mpi.h gives some errors like:
// /Users/hines/mpich2-1.0.5p4/instl/include/mpicxx.h:26:2: error: #error
// SEEK_SET is #defined but must not be for the C++ binding of MPI"
 
#if 0 && NRNMPI && DARWIN
// For DARWIN I do not really know the proper way to avoid
// dyld: lazy symbol binding failed: Symbol not found: _MPI_Init
// when the MPI functions are all used in the libnrnmpi.dylib
// but the libmpi.a is statically linked. Therefore I am forcing
// the linking here by listing all the MPI functions being used.
#include <mpi.h>
static void work_around() {
    MPI_Comm c = MPI_COMM_WORLD;
    MPI_Init(0, 0);
    MPI_Comm_rank(c, 0);
    MPI_Comm_size(c, 0);
    MPI_Wtime();
    MPI_Finalize();
    MPI_Unpack(0, 0, 0, 0, 0, 0, c);
    MPI_Pack(0, 0, 0, 0, 0, 0, c);
    MPI_Pack_size(0, 0, c, 0);
    MPI_Send(0,0,0,0,0,c);
    MPI_Probe(0, 0, c, 0);
    MPI_Get_count(0, 0, 0);
    MPI_Recv(0,0,0,0,0,c,0);
    MPI_Sendrecv(0,0,0,0,0,0,0,0,0,0,c,0);
    MPI_Iprobe(0,0,c,0,0);
    MPI_Get_address(0,0);
    MPI_Type_create_struct(0,0,0,0,0);
    MPI_Type_commit(0);
    MPI_Allgather(0,0,0,0,0,0,c);
    MPI_Allgatherv(0,0,0,0,0,0,0,c);
    MPI_Allreduce(0,0,0,0,0,c);
}
#endif