[MPICH] MPICH2+MPE on windows

[James S Perrin]

Hi,
	One other thing I forgot to mention. Using this method to add logging (which I 
like a lot, thanks!) is that MPI_Pcontrol() seems to be rendered ineffective. I 
call MPI_Pcontrol(0) immediately after MPI_Init() but still get a full log.

James

James S Perrin wrote:

> Hi David,
> 
>     I found that "-env MPI_WRAP_DLL_NAME mpich2mpe" or rather better 
> "-genv MPI_WRAP_DLL_NAME mpich2mpe" worked for me. Maybe windows also 
> looks fo "%s.dll"
> 
>     I think you've got a little mixed up as MPICH2_CHANNEL seem to be 
> for setting things like "ib" (inifiband) :) MPI_WRAP_DLL_NAME can be set 
> "mpe" can be set to as the code also looks for dll's of the pattern 
> "mpich2%s.dll"
> 
> Regards
> James
> 
> David Ashton wrote:
> 
>> James,
>>
>> Thanks for pointing out the bug that -log is not global.  If you specify
>> then environment variable, MPI_WRAP_DLL_NAME, then you must specify the
>> entire name - mpich2mpe.dll.  If you use the MPICH2_CHANNEL environment
>> variable then you can use the short name, mpe.
>>
>> -David Ashton
>>
>> -----Original Message-----
>> From: owner-mpich-discuss at mcs.anl.gov
>> [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of James S Perrin
>> Sent: Monday, July 11, 2005 8:46 AM
>> To: mpich-discuss at mcs.anl.gov
>> Subject: [MPICH] MPICH2+MPE on windows
>>
>> Hi,
>>     This is a follow up to an earlier thread (Status of MPE2 on Windows)
>> where it was stated that to run an mpi job with profiling you can use the
>> (undocumented) -log  to mpiexec (smpd only). This didn't work for my 
>> master/slave job until
>> I realised -log isn't a global option and has to be specified for each 
>> group
>> of processes.
>>
>>     However I noticed while digging around in the source code -log sets
>> the wrapper dll to "mpe" whereas the suggested default is "mpich2mpe" 
>> (src/util/multichannel/mpi.c). I was wondering is there any difference, I
>> didn't notice any when passing "-env MPI_WRAP_DLL_NAME mpich2mped" to 
>> mpiexec?
>>
>> Regards
>> James
> 
> 
> 


-- 
-----------------------------------------------------------------------------
James S. Perrin,                   | email: james.perrin at manchester.ac.uk
Manchester Visualization Centre,   | www.sve.man.ac.uk/General/Staff/perrin
Kilburn Building, The University,  | tel: +44 161 275 6945
Manchester, England. M13 9PL.      | fax: +44 161 275 6800/6040
-----------------------------------------------------------------------------
"The test of intellect is the refusal to belabour the obvious" -Alfred Bester
-----------------------------------------------------------------------------