[mpich-discuss] Problem with LD_PRELOAD

[Simon Hammond]

Are you exporting the environment variable (LD_PRELOAD) correctly? Do
you see any output from the tracer at all (when the application starts
up?)



--
Si Hammond




On 30 September 2011 05:59, Gustavo Correa <gus at ldeo.columbia.edu> wrote:
> Maybe using the --enable-g=... [i.e. debug] option of configure would help?
> You could go  to the MPICH2 top directory and do './configure --help' to check the details.
> I hope this helps,
> Gus Correa
>
> On Sep 30, 2011, at 5:47 AM, Sandra Mendez wrote:
>
>> Hi,
>>
>> I need trace  mpi-io and for this I have a library that is load with LD_PRELOAD. It traces on openmpi but does not trace on MPICH2.
>> MPICH2 was installed with the next command to configure:
>>
>>
>> ./configure --prefix=/home/smendez/mpich2-install --enable-shared --with-mpe --enable-sharedlibs=gcc F77=/usr/bin/gfortran FC=/usr/bin/gfortran --enable-dynamiclibs=ch3:sock
>>
>> But It does not trace mpi instructions.
>> Somebody can help me?
>> Thanks.
>> Sandra.-
>>
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