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Note: This code has been merged into Pegasus (github.com/pegasus-isi/pegasus) as Pegasus-MPI-Cluster and is no longer maintained. This is a workflow engine that runs as an MPI job. The workflows are simple DAGs (Directed Acyclic Graphs) described with a file format similar to that used by Condor DAGMan. There are some example DAGs in the test directory. More information on the format can be found in the man page. The MPI rank 0 process becomes a master, and the rank 1..N processes become workers. The master process hands out the tasks to the workers in FCFS order, according to the dependencies specified in the DAG. To build the code run: $ make If the system you are on does not have an 'mpicxx' wrapper for the C++ compiler then you will have to edit the makefile and change the CXX and CC variables to point at the right compiler. To run the tests do: $ make test Finally, to install do: $ make install By default it will install in $(HOME), otherwise you can do: $ make prefix=/usr/local install To execute a workflow run: $ mpirun -n 4 mpidag test/diamond.dag or something similar in your PBS/LSF/SGE submit script. Ask your local system administrator if you are unsure how to run MPI applications on your cluster. For more information see the mpidag.1 man page.
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Tool for running DAG-structured scientific workflows as an MPI job
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