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ARM software: Difference between revisions
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4. When done, exit the shell to terminate the allocation. | 4. When done, exit the shell to terminate the allocation. | ||
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IMPORTANT: The current versions of DDT and OpenMPI have a compatibility issue which breaks the important feature of DDT - displaying message queues (available from the "Tools" drop down menu). There is a workaround: before running DDT, you have to execute the following command: | IMPORTANT: The current versions of DDT and OpenMPI have a compatibility issue which breaks the important feature of DDT - displaying message queues (available from the "Tools" drop down menu). There is a workaround: before running DDT, you have to execute the following command: | ||
$ export OMPI_MCA_pml=ob1 | <!--T:35--> | ||
$ export OMPI_MCA_pml=ob1 | |||
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Be aware that the above workaround can make your MPI code run slower, so only use this trick when debugging. | Be aware that the above workaround can make your MPI code run slower, so only use this trick when debugging. | ||