
parallel processing - CPU SIMD vs GPU SIMD? - Stack Overflow
GPU uses the SIMD paradigm, that is, the same portion of code will be executed in parallel, and applied to various elements of a data set. However, CPU also uses SIMD, and provide …
Are GPU/CUDA cores SIMD ones? - Stack Overflow
The first Fermi based GPU, implemented with 3.0 billion transistors, features up to 512 CUDA cores. A CUDA core executes a floating point or integer instruction per clock for a thread. The …
gpu - What does SIMD mean? - Stack Overflow
2019年3月18日 · SIMD GPU means the GPU processes only one instruction on an array of data, for example of a game, the GPU is only responsible for graphical representation of the game …
cuda - Why use SIMD if we have GPGPU? - Stack Overflow
2014年9月2日 · First, SIMD can more easily interoperate with scalar code, because it can read and write the same memory directly, while GPUs require the data to be uploaded to GPU …
gpu - Can CUDA use SIMD extensions? - Stack Overflow
2011年3月8日 · As was mentioned in a comment to one of the replies, NVIDIA GPU has some SIMD instructions. They operate on unsigned int on per-byte and per-halfword basis. As of …
SIMD-16 and SIMD-32 advantage/disadvantage? - Stack Overflow
2019年8月17日 · Particularly in AMD GPU case, GCN and rDNA are designed to process 64 and 32 threads respectively. The SIMD then process those clustered threads. But the difference is …
SIMD intrinsics - are they usable on gpus? - Stack Overflow
2013年2月19日 · Yes you can use SIMD intrinsics in the kernel code on CPU or GPU provided the compiler supports usage of these intrinsics. Usually the better way to use SIMD will be …
OpenMP offloading on GPU, 'simd' specificities - Stack Overflow
2022年11月10日 · Some month ago, there was no viable support for the 'simd' clause + gpu offloading on the cray compiler (it forced one thread per thread block !). – Etienne M …
Can modern CPUs run in SIMT mode like a GPU? - Stack Overflow
2023年11月8日 · CPU SIMD is a close equivalent to what you want. I think really the CPU equivalent of this GPU architecture is CPU-style SIMD using short fixed-width vectors (like 256 …
gpu - OpenCL - How to I query for a device's SIMD width? - Stack …
Worth attention is also function get_sub_group_size() which returns the size of the current sub-group, which is never bigger than SIMD width: for example if SIMD width is 32 and group size …