[MPICH] Problems with mpicc

[Darius Buntinas]

Hi Jeff,

Add
   -show
to the end of your mpicc command and send us the output.  This will show 
the actual compile command.

Thanks,
Darius

On 07/19/2007 04:12 PM, Jeffrey B. Layton wrote:
> 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;
>>> }
>>>
>>>
>>>
>>
>>
>