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  1. Consistency of Floating-Point Results using the Intel® Compiler ...

    https://software.intel.com/en-us/articles/consistency-of-floating-point-results-using-the-intel-compiler

    Aug 2, 2012 ... Tradeoffs between floating-point accuracy, reproducibility and performance are ... -fp-model precise -fp-model source (Linux* or OS X*).

  2. Floating-point control in the Intel® compiler and libraries or Why ...

    https://software.intel.com/sites/default/files/article/326703/fp-control-2012-08.pdf

    The finite precision of floating-point operations leads to an inherent uncertainty ... -fp-trap=common Unmask floating point exceptions (C/C++ only). /fpe:0. -fpe0.

  3. Differences in Floating-Point Arithmetic Between Intel® Xeon ...

    https://software.intel.com/en-us/articles/differences-in-floating-point-arithmetic-between-intel-xeon-processors-and-the-intel-xeon

    Mar 28, 2013 ... Download Article Download Differences in Floating-Point Arithmetic ... Extended ( 80-bit) precision is supported through the x87 instruction set.

  4. Performance Benefits of Half Precision Floats | Intel® Developer Zone

    https://software.intel.com/en-us/articles/performance-benefits-of-half-precision-floats

    Aug 15, 2012 ... Half precision floats are 16-bit floating-point numbers, which are half the size of traditional 32-bit single precision floats, and have lower ...

  5. Consistency of Floating-Point Results

    https://software.intel.com/sites/default/files/article/164389/fp-consistency-102511.pdf

    (default) compiler chooses precision for expression evaluation. Floating-point exception semantics not enforced. Access to the FPU environment not allowed.

  6. Single-precision Floating-point Vector Intrinsics | Intel® Developer ...

    https://software.intel.com/en-us/node/583133

    The single-precision floating-point vector intrinsics listed here are designed for the Intel® Pentium® 4 processor with Streaming SIMD Extensions 3 (Intel® ...

  7. Quad precision floating point arithmetic with SSE/AVX?

    https://software.intel.com/en-us/forums/intel-isa-extensions/topic/283646

    May 26, 2011 ... Does latest x86 architecture offer native support for quad precision (QP)floating- point (FP)arithmetic?If no,canQP be emulatedon XMM and ...

  8. Understanding floating point value with Intel® Fortran Compiler ...

    https://software.intel.com/en-us/articles/understanding-floating-point-value-with-intel-fortran-compiler

    Jul 22, 2012 ... Problem: When calculate the following expressions with Intel® Fortran Compiler ( assuming A is in single precision, real(4) data type): real(4) A

  9. Inconsistency in floating point results on Different Architecture!!! How ...

    https://software.intel.com/en-us/forums/intel-c-compiler/topic/518464

    Jul 25, 2014 ... I am getting inconsistent floating point results when i run an application on ... To get consistent floating-point results, you should set "Precise ...

  10. Double Precision Floating Point

    https://software.intel.com/sites/landingpage/opencl/user-guide/Double_Precision_Floating_Point.htm

    The CPU device implements cl_khr_fp64 to support for double precision floating- point. Double precision floating-point is a requirement for a class of scientific ...

  11. Problem with Floating point precision (Compaq Visual Fortran 6.6C)

    https://software.intel.com/en-us/forums/intel-visual-fortran-compiler-for-windows/topic/275650

    Jun 20, 2006 ... I have following code:Code: real*8 r1,r2,r3 real*4 r4 r1=-1.20006351619769219d -0001 r2=+1.20005790949126556d-0001 r3=r2+r1 ...

  12. White Paper Differences in Floating-Point Arithmetic Between Intel ...

    https://software.intel.com/file/395816/download

    The same floating-point model applies to the Intel® Xeon Phi™ coprocessor, but the ... Single (32-bit) and double (64-bit) precision are supported in hardware; ...

  13. Compile error of "use of '/fp: ' option along with a floating point ...

    https://software.intel.com/en-us/forums/intel-c-compiler/topic/295865

    Jun 25, 2009 ... I got the compile error of "use of '/fp: ' option along with a floating point precision option not supported ". Please help me.Compiler version is ...

  14. Intel® Half-Precision Floating-Point Format Conversion Instructions ...

    https://software.intel.com/en-us/blogs/2013/09/30/intel-half-precision-floating-point-format-conversion-instructions

    Sep 30, 2013 ... Half precision floating point is a 16-bit binary floating-point format. It is half the size of traditional 32-bit single precision floats. More information ...

  15. Run-to-Run Reproducibility of Floating-Point Calculations for ...

    https://software.intel.com/en-us/articles/run-to-run-reproducibility-of-floating-point-calculations-for-applications-on-intel-xeon

    Mar 26, 2013 ... This in turn changes the order of operations in a floating-point reduction; the rounding of different intermediate results to the declared precision ...

  16. Intel® Fortran Compiler - Default floating point precision differs ...

    https://software.intel.com/en-us/articles/intel-fortran-compiler-default-floating-point-precision-differs-between-linuxmac-os-and-windows

    Nov 3, 2008 ... The default FPU precision on Linux* and Mac OS* is a 64-bit significant. This equates to the compiler switch -pc80. The corresponding setting ...

  17. x87 and SSE Floating Point Assists in IA-32: Flush-To-Zero (FTZ ...

    https://software.intel.com/en-us/articles/x87-and-sse-floating-point-assists-in-ia-32-flush-to-zero-ftz-and-denormals-are-zero-daz

    Oct 17, 2008 ... Within the XMM registers, 32-bit single-precision and 64-bit double-precision floating point values are not internally converted to 80-bit ...

  18. Intel® Decimal Floating-Point Math Library | Intel® Developer Zone

    https://software.intel.com/en-us/blogs/2008/03/06/intel-decimal-floating-point-math-library

    Mar 6, 2008 ... Similar examples can be found for double precision, or any other binary floating- point format. The underlying cause is that most decimal ...

  19. Alarming floating point discrepancies between simple IPP and ...

    https://software.intel.com/en-us/forums/intel-integrated-performance-primitives/topic/288620

    Jul 15, 2010 ... Alarming floating point discrepancies between simple IPP and MSVC++ ... In other words, MATLAB in single precision and native C++ code will ...

  20. Floating-Point Performance and Vectorization | Intel® Developer Zone

    https://software.intel.com/en-us/articles/floating-point-performance-and-vectorization

    Sep 8, 2011 ... Challenge Obtain excellent floating-point performance. ... For example, use single precision instead of double precision where possible, and ...

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