Re: [OMPI users] using MPI_Recv in two different threads.

[Hamilton Fischer]

After some searching, it turns out mpi4py tries to call MPI_Init_thread but 
python in general has issues with threads apparently. I'm backing off from 
threading at this point.

noobermin





 From: TERRY DONTJE <terry.don...@oracle.com>
To: us...@open-mpi.org 
Sent: Wednesday, January 11, 2012 8:09 AM
Subject: Re: [OMPI users] using MPI_Recv in two different threads.
 

 
I am a little confused by your problem statement.  Are you saying you want to 
have each MPI process to have multiple threads that can call MPI concurrently?  
If so you'll want to read up on the MPI_Init_thread function.  

--td

On 1/11/2012 7:19 AM, Hamilton Fischer wrote: 
Hi, I'm actually using mpi4py but my question should be similar to normal MPI 
in spirit. Simply, I want to do a MPMD application with a dedicated thread for 
each node (I have a small network). I was wondering if it was okay to do a 
blocking recv in each independent thread. Of course, since each thread has one 
node, there is no problem with wrong recv's being picked up by other threads. 
Thanks. noobermin ___
users mailing list us...@open-mpi.org 
http://www.open-mpi.org/mailman/listinfo.cgi/users 

-- 

 

Terry D. Dontje | Principal Software Engineer

Developer Tools Engineering | +1.781.442.2631
 Oracle - Performance Technologies
95 Network Drive, Burlington, MA 01803
Email terry.don...@oracle.com




___
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users

Re: [OMPI users] using MPI_Recv in two different threads.

[TERRY DONTJE]

I am a little confused by your problem statement.  Are you saying you 
want to have each MPI process to have multiple threads that can call MPI 
concurrently?  If so you'll want to read up on the MPI_Init_thread 
function.


--td

On 1/11/2012 7:19 AM, Hamilton Fischer wrote:

Hi, I'm actually using mpi4py but my question should be similar to normal MPI 
in spirit.

Simply, I want to do a MPMD application with a dedicated thread for each node 
(I have a small network). I was wondering if it was okay to do a blocking recv 
in each independent thread. Of course, since each thread has one node, there is 
no problem with wrong recv's being picked up by other threads.


Thanks.

noobermin

___
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users


--
Oracle
Terry D. Dontje | Principal Software Engineer
Developer Tools Engineering | +1.781.442.2631
Oracle *- Performance Technologies*
95 Network Drive, Burlington, MA 01803
Email terry.don...@oracle.com 

[OMPI users] using MPI_Recv in two different threads.

[Hamilton Fischer]

Hi, I'm actually using mpi4py but my question should be similar to normal MPI 
in spirit.

Simply, I want to do a MPMD application with a dedicated thread for each node 
(I have a small network). I was wondering if it was okay to do a blocking recv 
in each independent thread. Of course, since each thread has one node, there is 
no problem with wrong recv's being picked up by other threads.


Thanks.

noobermin