fb16dfecae
Commit b7f05445c0 has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.
This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.
Approved by: portmgr (tcberner)
15 lines
949 B
Text
15 lines
949 B
Text
COSMA is a parallel, high-performance, GPU-accelerated, matrix-matrix
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multiplication algorithm that is communication-optimal for all
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combinations of matrix dimensions, number of processors and memory
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sizes, without the need for any parameter tuning. The key idea behind
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COSMA is to first derive a tight optimal sequential schedule and only
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then parallelize it, preserving I/O optimality between processes. This
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stands in contrast with the 2D and 3D algorithms, which fix process
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domain decomposition upfront and then map it to the matrix dimensions,
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which may result in asymptotically more communication. The final
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design of COSMA facilitates the overlap of computation and
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communication, ensuring speedups and applicability of modern
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mechanisms such as RDMA. COSMA allows to not utilize some processors
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in order to optimize the processor grid, which reduces the
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communication volume even further and increases the computation volume
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per processor.
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