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doku:time [2015/04/02 14:35] – [MPI internal functions] ir | doku:time [2015/04/17 11:45] (current) – [Hybrid OMP and MPI] ir | ||
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=== Examples === | === Examples === | ||
- | In the following | + | In this {{: |
There are two possibilities. Either a MPI_Barrier can be set before each time call. Then the time measured is the time needed that all MPI processes are finished. Or t1 and t2 are defined without a barrier, yielding the execution times for the individual processes. | There are two possibilities. Either a MPI_Barrier can be set before each time call. Then the time measured is the time needed that all MPI processes are finished. Or t1 and t2 are defined without a barrier, yielding the execution times for the individual processes. | ||
==== omp internal calls ==== | ==== omp internal calls ==== | ||
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gives the amount of time that the CPU is busy for a particular task from one call to the next. | gives the amount of time that the CPU is busy for a particular task from one call to the next. | ||
+ | ===== Hybrid OMP and MPI ====== | ||
+ | {{ : | ||
+ | {{ : | ||
+ | {{: | ||
+ | ====== Serial codes ====== | ||
==== fortran ==== | ==== fortran ==== | ||
< | < |