85
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Changes
GPU
,→The Implicitly Parallel SIMT Programming Model
* OpenMP 4.5 Device Offload
=The Implicitly Parallel SIMT Programming Model=
CUDA, OpenCL, ROCm HIP, all have the same model of implicitly parallel programming. All threads are given an identifier: a threadIdx in CUDA or local_id in OpenCL. Aside from this index, all threads of a kernel will execute the same code. The only way to alter the behavior of code is to use this threadIdx to access different data.
