Dear, It seems to me you are trying to parallelize following a Master/Slave paradigm.
Perhaps you may want to take a look and test some existing MPI-based library for achieving that: - DMSM: https://www.hpcvl.org/faqs/dmsm-library - TOP-C: http://www.ccs.neu.edu/home/gene/topc.html - ADLB: https://www.cs.mtsu.edu/~rbutler/adlb/ Kind Regards, -- Constantinos On Fri, Sep 30, 2016 at 5:36 PM, Bar�� Ke�eci via users < users@lists.open-mpi.org> wrote: > Hello everyone, > I'm trying to investigate the paralellization of an algorithm with OpenMPI > on a distributed computers' network. In the network there are one Master > PC and 24 Computing Node PCs. I'm quite a newbie in this field. However i > achieved installing the OpenMPI and compiling and running my first parallel > codes on this parallel platform. > > Now here is my question. > The algorithm in my concern is a simple one. Such that: in the outer "for > loop" the algorithm repeats until a stopping conditon is met. The Master PC > should do this outer loop. And in the "inner loop" a local search procedure > is performed in paralel by the 24 Computing Nodes. That means i actually > want to paralellize the inner loop since it is the most time cosuming part > of my algorithm. I have already managed to code this part since i know the > total number of steps of the "inner loop" and hence i was able to > paralellize the inner "for loop" over the distributed pcs. Now here is the > problem. I want the Master PC repeats the main loop until a stopping > criterion is met, but at each step it should distribute the inner loop over > 24 compute nodes. And i dont have any idea how should i do this. It appears > to me i should build a code something like, i have to make each compute > node wait a signal from the master code and reapeat the inner loop over and > over... > > I hope i could make it clear with my poor English. I would appreciate if > anyone can help me or at least give the broad methodology. > > Best regars to all. > > Doctor Keceee > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://rfd.newmexicoconsortium.org/mailman/listinfo/users >
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