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Type: Posts; User: rahulgarg

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    Thanks a lot Aleksandar! We have been looking...

    Thanks a lot Aleksandar! We have been looking into using GLSL + Compute Shaders as an alternative to CUDA and OpenCL for some scientific computing applications. Precision is one of the things I have...
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    Thanks. That's a lot less precise than I hoped...

    Thanks. That's a lot less precise than I hoped for :(
    For comparison, OpenCL and CUDA both define that add, mul and divide on fp64 is correctly rounded and HLSL defines add and mul as correctly...
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    fp64 (double-precision) ULP errors?

    I have been trying to find out if the GLSL specification (as per OpenGL 4.3) specifies any precision or error bounds for fp64 operations. For fp32 (float), the errors are specified as ULPs. I am not...
  4. Thanks for the clarification! I was under the...

    Thanks for the clarification! I was under the impression that DP functions were also executed in hardware, but I guess I was wrong. I will look at the software emulated versions that people have...
  5. Double precision: Extensions for trigonometry and transcendental functions?

    The standard double precision extension only defines addition, multiplication, divison, square-root and a few clamping and comparison functions for double precision datatype. I was wondering if any...
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