Abstract
We investigate how to use coarrays in Fortran (CAF) for parallelizing a flow solver and the capabilities of current compilers with coarray support. Usability and performance of CAF in mesh-based applications is examined and compared to traditional MPI strategies. We analyze the influence of the memory layout, the usage of communication buffers against direct access to the data used in the computation and different methods of the communication itself. Our objective is to provide insights on how common communication patterns have to be formulated when using coarrays.
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© 2011 Springer-Verlag Berlin Heidelberg
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Hasert, M., Klimach, H., Roller, S. (2011). CAF versus MPI - Applicability of Coarray Fortran to a Flow Solver. In: Cotronis, Y., Danalis, A., Nikolopoulos, D.S., Dongarra, J. (eds) Recent Advances in the Message Passing Interface. EuroMPI 2011. Lecture Notes in Computer Science, vol 6960. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-24449-0_26
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DOI: https://doi.org/10.1007/978-3-642-24449-0_26
Publisher Name: Springer, Berlin, Heidelberg
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