Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to in开发者_如何学运维clude desired behavior, a specific problem or error, and the sho
I have a program similar to the one开发者_开发百科 below. In the code below, all processes know the current iteration step of all other processes. However, I am curious if there is a way to do this wi
I noticed that the exact same code took 50% more time to run on OpenMPI than Intel. I use the following syntax to compile and run:
I was wondering if in an MPI program where you specify that there is thread support, all the开发者_运维技巧 threads make an MPI::Bcast call (making shure that in the call, the sender process only poss
When calling MPI_BCAST, is there any implied synchronization? For example, if the sender process were to get to the MPI_BCAST before others could it do the BCAST and then continue without any acknowle
I am trying to run a simple MPI program on 4 nodes. I am using OpenMPI 1.4.3 running on Centos 5.5. When I submit the MPIRUN Command with the hostfile/machinefile, I get no output, receive a 开发者_JS
I have a situation similar to the code below: worker processes work on a subset of data and must send an unknown amount of data back to the master. Is it possible to have the master wait and receive a
I want to run some function using mpi from main but I don\'t know how it should be. It looks like: #define MAXSIZE 100
I\'m trying to recombine sub-arrays without the dark-grey rows with MPI_Gatherv. Picture\'s worth a thousand words:
Is there anyway to serialize a certain part of your MPI code ? For example when printing the information out to the screen. Something like below:
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