Allen R. Hainline

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Optimization of vector-intensive applications for the CRAY X-MP/Y-MP often requires arranging the operations to take full advantage of such architectural features as the memory system, independent memory ports, chaining, and independent functional units. Estimation of performance is not straightforward since many operations can occur concurrently. As a tool(More)
The conventional method of assessing supercomputer performance by measuring the execution time of software has many shortcomings. First, effort is required to write and debug the software. Second, time on the machine is required, and additional effort is needed to verify the validity of the test. Third, alterations to the algorithm require changing the code(More)
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