Mathias Schott – NVIDIA Technical Blog News and tutorials for developers, data scientists, and IT admins 2023-11-25T02:05:16Z http://www.open-lab.net/blog/feed/ Mathias Schott <![CDATA[Reading Between The Threads: Shader Intrinsics]]> http://www.open-lab.net/blog/?p=72093 2023-11-25T02:05:16Z 2016-07-29T16:00:00Z When writing compute shaders, it��s often necessary to communicate values between threads. This is typically done through shared memory. Kepler GPUs introduced...]]>

When writing compute shaders, it’s often necessary to communicate values between threads. This is typically done through shared memory. Kepler GPUs introduced shuffle intrinsics, which enable threads of a warp to directly read each other’s registers, avoiding memory access and synchronization. Shared memory is relatively fast but instructions that operate without using memory of any kind are…

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