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Adding OpenMP multi-GPU parallelization for OpenMP offload in the version without function overloading of the star operator.
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OpenMP multi-GPU parallelization through dynamic-GPUstatic multi-GPU loop scheduling, i.e., thread ID tid_i offloads its assigned chunk from schedule(dynamic) to GPU ID tid_i%numGPUs, where numGPUs is the number of devices on a node of a supercomputer.
Note that the GPU should be generalized to 'devices' for truly heterogeneous parallelism and scheduling on a node.
The variable names use 'devices' rather than 'GPU', but the code is currently experiemented with for GPUs only and not CPUs and GPUs. Experimentation with scheduling across CPUs, GPUs, or any xPUs is left for future work at this time.