func Init() {
// initialize the actual mpi stuff, but with two nil
err := C.MPI_Init(nil, nil)
if err != 0 {
log.Fatal(err)
}
}
//Init
//Initializes the MPI execution environment
func Init(argv *[]string) int {
argc := len(*argv)
c_argc := C.int(argc)
c_argv := make([]*C.char, argc)
for index, value := range *argv {
c_argv[index] = C.CString(value)
defer C.free(unsafe.Pointer(c_argv[index]))
}
err := C.MPI_Init(&c_argc, (***C.char)(unsafe.Pointer(&c_argv)))
goargs := make([]string, c_argc)
for i := 0; i < int(c_argc); i++ {
goargs[i] = C.GoString(c_argv[i])
}
*argv = goargs
return int(err)
}
// Initialize initializes the MPI environment
func Initialize() error {
// Allocate space for argc and argv
argc := C.int(len(os.Args))
argv := make([](*C.char), argc)
// Copy os.Args into argv
for i, gstr := range os.Args {
argv[i] = C.CString(gstr)
}
ptrargv := &argv[0]
perr := C.MPI_Init(&argc, &ptrargv)
if perr != 0 {
return errors.New("Error initializing MPI")
}
// update os.Args
os.Args = os.Args[0:0]
for i := 0; i < int(argc); i++ {
os.Args = append(os.Args, C.GoString(argv[i]))
C.free(unsafe.Pointer(argv[i]))
}
return nil
}
func Init() {
var argc int
C.MPI_Init((*C.int)(unsafe.Pointer(&argc)), (***C.char)(unsafe.Pointer(&os.Args)))
}
func Init() int {
return int(C.MPI_Init(nil, nil))
}