Linpack
Free
1.5.1for iPhone, iPad and more
Age Rating
Linpack Screenshots
About Linpack
Linpack Benchmark
The 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 2/3·N3 + 2·N2 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.
The 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 2/3·N3 + 2·N2 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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What's New in the Latest Version 1.5.1
Last updated on Sep 15, 2017
Old Versions
This app has been updated by Apple to display the Apple Watch app icon.
support upcoming hardware and new iOS version
support upcoming hardware and new iOS version
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Version History
1.5.1
Sep 15, 2017
This app has been updated by Apple to display the Apple Watch app icon.
support upcoming hardware and new iOS version
support upcoming hardware and new iOS version
1.5
Sep 5, 2017
support new iOS versions
1.4
Oct 4, 2014
iOS 8 support
A8 optimization
A8 optimization
1.3.1
Nov 27, 2013
optimization for A7
1.3
Sep 13, 2013
iOS 7 support
1.2
Sep 22, 2012
iPhone 5 and iPod Touch 5 Gen support
1.1
Mar 26, 2012
- adapted for iPad
- multithread mode (multicore CPU support)
- using high precision timer
- built with LLVM compiler
- multithread mode (multicore CPU support)
- using high precision timer
- built with LLVM compiler
1.01
Jul 22, 2010
iAd support
1.0
Jul 12, 2010
Linpack FAQ
Click here to learn how to download Linpack in restricted country or region.
Check the following list to see the minimum requirements of Linpack.
iPhone
Requires iOS 8.0 or later.
iPad
Requires iPadOS 8.0 or later.
iPod touch
Requires iOS 8.0 or later.
Linpack supports English