https://community.intel.com/t5/OpenCL-for-CPU/Common-buffer-allocation-for-efficient-OpenMP-and-OpenCL/m-p/1159428#M6293 <P>I am building a library which will simultaneously perform different compute intensive operations on a vector on the CPU side and GPU side using OpenMP and OpenCL. The problem is when I override a vector's allocator for proper alignment to enable zero-copy, the OpenMP performance suffers as the vector stops being optimized for sse and avx instructions. Hence, How to write a custom allocator for a stl vector such that it can be utilised both by OpenMP/ SSE/AVX2 for CPU side work and OpenCL / zero-copy for GPU side work ?</P> Tue, 10 Sep 2019 06:19:31 GMT Verma__Abhi 2019-09-10T06:19:31Z https://community.intel.com/t5/OpenCL-for-CPU/Common-buffer-allocation-for-efficient-OpenMP-and-OpenCL/m-p/1159428#M6293 <P>I am building a library which will simultaneously perform different compute intensive operations on a vector on the CPU side and GPU side using OpenMP and OpenCL. The problem is when I override a vector's allocator for proper alignment to enable zero-copy, the OpenMP performance suffers as the vector stops being optimized for sse and avx instructions. Hence, How to write a custom allocator for a stl vector such that it can be utilised both by OpenMP/ SSE/AVX2 for CPU side work and OpenCL / zero-copy for GPU side work ?</P> Tue, 10 Sep 2019 06:19:31 GMT https://community.intel.com/t5/OpenCL-for-CPU/Common-buffer-allocation-for-efficient-OpenMP-and-OpenCL/m-p/1159428#M6293 Verma__Abhi 2019-09-10T06:19:31Z