Re: [OMPI users] Any scientific application heavily using MPI_Barrier?

2009-03-06 Thread Ganesh
s into ISP and see what it says wrt the FIB status. I'm not fibbing... :-) Cheers, Ganesh p.s. I said that FIB does the analysis for one data set. As in our paper, we have shown that in many cases, a static analyzer can determine that a program is data independent. In that case, the FIB anal

Re: [OMPI users] Any scientific application heavily using MPI_Barrier?

2009-03-05 Thread Ganesh
Thank you, Jeff and Ganesh. My current research is trying to rewrite some collective MPI operations to work with our system. Barrier is my first step, maybe I will have bcast and reduce in the future. I understand that some applications used too many unnecessary barriers. But here what I

Re: [OMPI users] Any scientific application heavily using MPI_Barrier?

2009-03-05 Thread Ganesh
We have a paper on the very topic that Jeff just mentioned : Subodh Sharma, Sarvani Vakkalanka, Ganesh Gopalakrishnan, Robert M. Kirby, Rajeev Thakur, and William Gropp, `` A Formal Approach to Detect Functionally Irrelevant Barriers in MPI Programs,'' Recent Advances in Parall

[OMPI users] Verification tool for MPI C programs available

2009-02-28 Thread Ganesh
hical user interfaces that show communication matches and its coverage guarantees make it useful for everyone - whether someone new to MPI or an advanced user. We will be very glad to assist you! Ganesh Gopalakrishnan School of Computing, University of Utah isp-...@cs.utah.edu --