multiple precision arithmetic


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multiple precision arithmetic

[′məl·tə·pəl prə¦sizh·ən ə′rith·mə‚tik]
(computer science)
Method of increasing the precision of a result by increasing the length of the number to encompass two or more computer words in length.
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Although overhead of data transfer between the global memory and the GPU is very high, it is still advantageous to employ this strategy rather than execute redundant computations requiring the multiple precision arithmetic. Access time to the global memory was identified as a rate-limiting step in the multiple precision computations on GPU [35].
Fast and accurate computations of the discrete Green's function require the hardware acceleration and the multiple precision arithmetic. The developed implementation simultaneously utilizes computational power of the central processing unit and the graphics processing unit to the computational tasks best suited for each architecture.

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