hcc support for the _restrict_ qualifier on kernel arguments is under development. In most cases, all pointer arguments must use this keyword to realize the benefit. This feature can help the compiler generate better code. The _restrict_ keyword tells the compiler that the associated memory pointer will not alias with any other pointer in the kernel or function. Managed memory, including the _managed_ keyword, are not supported in HIP. HIP uses an alternate syntax based on the HIP_DYNAMIC_SHARED macro. The functions for accessing constant memory (hipGetSymbolAddress(), hipGetSymbolSize(), hipMemcpyToSymbol(), hipMemcpyToSymbolAsync, hipMemcpyFromSymbol, hipMemcpyFromSymbolAsync) are under development.Įxtern _shared_ allows the host to dynamically allocate shared memory and is specified as a launch parameter. The host writes constant memory before launching the kernel from the GPU, this memory is read-only during kernel execution. HIP-Supported CUDA API Reference Guide v4.5.AMD Instinct™ High Performance Computing and Tuning Guide.ROCm™ Learning Center and Knowledge Base - NEW!!.New AMD ROCm Information Portal for ROCm v4.5 and Above.
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