[mpich-discuss] Problem with LD_PRELOAD

[Sandra Mendez]

Hi,
Yes, export LD_PRELOAD=/home/smendez/libpas2p/bin/libpas2p-pvfs2.so

and ldd report:

smendez at node1:~$ ldd
/home/smendez/NPB3.3.1/NPB3.3-MPI/bin/bt.C.4.mpi_io_full	linux-vdso.so.1 =>
(0x00007fffc7bff000)
	/home/smendez/libpas2p/bin/libpas2p-pvfs2.so (0x00007fd57b74f000)
	libmpich.so.3 => /home/smendez/mpich2-install/lib/libmpich.so.3
(0x00007fd57b359000)
	libopa.so.1 => /home/smendez/mpich2-install/lib/libopa.so.1
(0x00007fd57b157000)
	libmpl.so.1 => /home/smendez/mpich2-install/lib/libmpl.so.1
(0x00007fd57af52000)
	librt.so.1 => /lib/librt.so.1 (0x00007fd57ad4a000)
	libpthread.so.0 => /lib/libpthread.so.0 (0x00007fd57ab2e000)
	libgfortran.so.3 => /usr/lib/libgfortran.so.3 (0x00007fd57a842000)
	libm.so.6 => /lib/libm.so.6 (0x00007fd57a5be000)
	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007fd57a3a7000)
	libc.so.6 => /lib/libc.so.6 (0x00007fd57a037000)
	libdl.so.2 => /lib/libdl.so.2 (0x00007fd579e33000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fd57b958000)
 
When the application starts does not report nothing.

Thanks.
Sandra.-
----------------mensaje original-----------------
De: "Simon Hammond" simon.hammond at gmail.com
Para: mpich-discuss at mcs.anl.gov
Fecha: Fri, 30 Sep 2011 06:46:16 -0600
-------------------------------------------------
 
 
> 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.-
>>>
>>> _______________________________________________
>>> mpich-discuss mailing list     mpich-discuss at mcs.anl.gov
>>> To manage subscription options or unsubscribe:
>>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>>
>> _______________________________________________
>> mpich-discuss mailing list     mpich-discuss at mcs.anl.gov
>> To manage subscription options or unsubscribe:
>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>>
> _______________________________________________
> mpich-discuss mailing list mpich-discuss at mcs.anl.gov
> To manage subscription options or unsubscribe:
> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>