[MPICH] Problems with mpicc

[Jeffrey B. Layton]

I can't even seem to compile to create test. I just tried a
different binary output name with the same result
(it hung for about 5 minutes).

Jeff

> Just in case this might be the problem, I'll remind you that there is 
> a system program named "test" which does nothing but set the exit code.
> Are you sure you aren't accidentally running this program instead of 
> the one compiled from code.c but linked as "test"?
>
> Rusty
>
> On Jul 19, 2007, at 3:47 PM, Jeffrey B. Layton wrote:
>
>> Afternoon,
>>
>> I built mpich2-1.0.5p4 with g95 and gcc 3.4.3 (see below).
>> Here's the configuration I used:
>>
>> ./configure  -prefix=/home/laytonj/bin/mpich2-1.0.5p4-g95  \
>> --enable-f77 --enable-f90 --enable-romio --disable-mpe \
>> --with-file-system="nfs+ufs"
>>
>> MPICH2 seemed to build and install just fine. Then I tried
>> compiling one of the non-MPI-IO codes from the MPI-2
>> book (see below). When I compile:
>>
>> mpicc code.c -o test
>>
>> it just hangs for a long time (I've let it sit for over 20 mins.).
>> The load stays around 1.0 and the memory usage doesn't
>> increase during the whole time.
>>
>> I know this one is a toughy. Any ideas?
>>
>> Thanks!
>>
>> Jeff
>>
>> gcc configuration:
>> % gcc -v
>> Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.3/specs
>> Configured with: ../configure --prefix=/usr --mandir=/usr/share/man 
>> --infodir=/usr/share/info --enable-shared --enable-threads=posix 
>> --disable-checking --with-system-zlib --enable-__cxa_atexit 
>> --disable-libunwind-exceptions --enable-java-awt=gtk 
>> --host=i386-redhat-linux
>> Thread model: posix
>> gcc version 3.4.3 20050227 (Red Hat 3.4.3-22.1)
>>
>> sample code:
>> /* example of sequential Unix write into a common file */
>> #include "mpi.h"
>> #include <stdio.h>
>> #define BUFSIZE 100
>>
>> int main(int argc, char *argv[])
>> {
>>    int i, myrank, numprocs, buf[BUFSIZE];
>>    MPI_Status status;
>>    FILE *myfile;
>>
>>    MPI_Init(&argc, &argv);
>>    MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
>>    MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
>>    for (i=0; i<BUFSIZE; i++)
>>        buf[i] = myrank * BUFSIZE + i;
>>    if (myrank != 0)
>>        MPI_Send(buf, BUFSIZE, MPI_INT, 0, 99, MPI_COMM_WORLD);
>>    else {
>>        myfile = fopen("testfile", "w");
>>        fwrite(buf, sizeof(int), BUFSIZE, myfile);
>>        for (i=1; i<numprocs; i++) {
>>            MPI_Recv(buf, BUFSIZE, MPI_INT, i, 99, MPI_COMM_WORLD,
>>                     &status);
>>            fwrite(buf, sizeof(int), BUFSIZE, myfile);
>>        }
>>        fclose(myfile);
>>    }
>>    MPI_Finalize();
>>    return 0;
>> }
>>
>>
>>
>
>