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Linpack for iOS

Publisher: Alexey Solovyov
iOS Free
Download v1.4 29 downloads
Version1.4
Publisher Alexey Solovyov
Release dateOct 18, 2014
Date addedOct 18, 2014
Os requirementsiOS
RequirementsCompatible with iPod Touch (3rd generation or later, iPhone 3Gs, iPhone 4, iPad. iTunes account required.
Total downloads29
PriceFree

Description

Linpack BenchmarkThe LINPACK Benchmarks are a measure of a system's floating point computing power. They measure how fast a computer solves a dense N by N system of linear equations Ax = b, which is a common task in engineering. The solution is obtained by Gaussian elimination with partial pivoting, with 2/3N3 + 2N2 floating point operations. The result is reported in millions of floating point operations per second (MFLOP/s, sometimes simply called FLOPS).Results.Mflop/s:Millions of floating point operations per second. A floating point operation here is a floating point addition or a floating point multiplication with 64 bit operands. For this problem there are 2/3 n^3 + n^2 floating point operations.Time:The time in seconds to solve the problem, Ax=b.Norm Res:A check is made to show that the computed solution is correct. The test is based on || Ax - b || / ( || A || || x || eps) where eps is described below. The Norm Res should be about O(1) in size. If this quantity is much larger than 1, the solution is probably incorrect.Precision:The relative machine precision usually the smallest positive number such that fl( 1.0 - eps ) < 1.0, where fl denotes the computed value and eps is the relative machine precision.

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