[MPICH] MPICH2 v1.02 in heterogeneous enviroment

[Kenneth Rempe]

Thanks for the response. I found the following in the MPICH2_1.0.3 
release notes:

- The CH3 device does not presently support heterogeneous 
communication.  That
  is to say that the processes involved in a job must use the same basic 
type
  sizes and format.  The sizes and format are typically determined by the
  processor architecture, although it may also be influenced by compiler
  options.  This device does support the use of different executables (e.g.,
  multiple-program-multiple-data, or MPMD, programming).


Which is just as you stated. Do you know if true heterogeneous support 
is planned?

Thanks again.

Ken



Rajeev Thakur wrote:

>MPICH2 doesn't yet work in heterogeneous environments. It will work in
>heterogeneous environments that really are homogoneous, ie, no differences
>in byte ordering, sizes of datatypes, etc. 
>
>Rajeev
> 
>
>  
>
>>-----Original Message-----
>>From: owner-mpich-discuss at mcs.anl.gov 
>>[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Kenneth Rempe
>>Sent: Monday, March 06, 2006 8:13 AM
>>To: mpich-discuss at mcs.anl.gov
>>Subject: [MPICH] MPICH2 v1.02 in heterogeneous enviroment
>>
>>
>>I'm using MPICH2 v1.02 with IBM AIX 5.2 and Red Hat Linux. My program 
>>works fine
>>if I just run on Linux machines or just IBM machines but 
>>fails with the 
>>following message when
>>trying to run on both IBM and Linux at the same time.
>>
>>Fatal error in MPI_Comm_spawn: Internal MPI error!, error stack:
>>MPI_Comm_spawn(128): 
>>MPI_Comm_spawn(cmd="/home/ken/DUKE/Formosa-link/New/FPSIM3/Lin
>>ux/fpsim3.exe", 
>>argv=2005bc88, maxprocs=1, info=0x9c000000, root=0, MPI_COMM_WORLD, 
>>intercomm=2005b858, errors=2002fff0) failed
>>MPID_Comm_spawn_multiple(52):
>>MPIDI_CH3_Comm_spawn_multiple(212):
>>MPIDI_CH3_Comm_accept(102):
>>MPIDI_CH3_Progress_wait(209): an error occurred while 
>>handling an event 
>>returned by MPIDU_Sock_Wait()
>>MPIDI_CH3I_Progress_handle_sock_event(886): [ch3:sock] 
>>received packet 
>>of unknown type (385875968)
>>% rank 0 in job 1  ibm6e1_34162   caused collective abort of all ranks
>>  exit status of rank 0: killed by signal 9
>>
>>
>>Is it possible to use MPICH2 in a heterogeneous environment?
>>
>>Thanks.
>>
>>
>>    
>>
>
>  
>


-- 
*** NOTE: soa.com will no longer be used after February 1, 2006, please change your address book ***

Kenneth R. Rempe                * email: kenneth.rempe at studsvikscandpower.com
Studsvik Scandpower, Inc.       * 
504 Shoup Avenue Suite #201     * voice:  208-522-4630
Idaho Falls, ID USA 83402-3502  * fax:    208-522-1187

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/mpich-discuss/attachments/20060307/51eebcbc/attachment.htm>