Nvidia cuda toolkit 3.21/13/2024 ![]() The efficiency loss is that a bit shift isn’t free, even though the shift is just to get access to the high word. Unsigned int hiword = (unsigned int) (圆4>32) Unsigned int loword = (unsigned int) 圆4 // truncates to locate low 32 bits Here’s how you do it: nvcc -ccbin /path/to/intel/Compiler/11.1/064/bin/intel64/icc. Tools The following development tools are available in the bin/ directory (except forNSight Visual Studio Edition (VSE) which is installed as a plug-in to Microsoft VisualStudio). ![]() Eventually I should rewrite it all in PTX but it’d be nice if the CUDA code were sufficient.įor example you may have unsigned long 圆4 = something() 1 Hello all, We’ve recently received questions from several of you about how to make use of the new ICC 11.1 support in CUDA Toolkit 3.2 for Linux 圆4. I do this kind of low level data updates in my PRNG code. While talking about swizzling, I wonder if there’s an efficient way to swizzle out access to the high and low words of a 64 bit integer? It should be a 0 cost conversion, sort of like _float_as_int. I suspect it does, since swizzling like this is common in Cg and shaders. I haven’t checked the PTX… I’m not sure if this reduces to a single-op intrinsic or not. It’s usually not a big efficiency problem, but it’s just nice to replace 4 lines of code filled with shifts and masks with a single line. I’m especially happy that this is here since I’ve had to do such reordering. You could of course do this with shifts and masks but it looks like this is a builtin op! The cuda-gdb hardware debugger and CUDA Visual Profiler are now included in the CUDA Toolkit installer, and the CUDA-GDB debugger is now available for. See the CUDA Toolkit release notes for details. ![]() SSE intrinsics on CPUs have similar swizzlers. CUDA Toolkit 11.5.2 (February 2022), Versioned Online Documentation CUDA Toolkit 11.5.1 (November 2021), Versioned Online Documentation CUDA Toolkit 11.5.0 (October 2021), Versioned Online Documentation CUDA Toolkit 11.4.4 (February 2022), Versioned Online Documentation CUDA Toolkit 11.4. CUDA Toolkit 2.3 (June 2009) Release Highlights The CUFFT Library now supports double-precision transforms and includes significant performance improvements for single-precision transforms as well. ![]() This lets you reorder or duplicate bytes sampled from two different 4-byte words. I never noticed since it’s just a short entry in the programming guide. It looks like 3.2 snuck in a simple new intrinsic, a “swizzle” operator. Sometimes you find hidden nuggets that aren’t in change lists… ![]()
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