USING GRAPHICS ACCELERATOR TO IMPROVE COMPUTING PERFORMANCE IN THE NUMERICAL MODELING OF COMPLEX TECHNICAL SYSTEMS FUNCTIONING
The complex logic technical problem which is the numerical simulation of transient chamber processes of operation mode of solid rocket motor is considered as a comparison of computing performance of workstation, equipped with a powerful multi-core central processing unit (CPU INTEL Core i7 4790K LGA 1150), without and with use of the graphic accelerator (GPU PCI-E Sapphire AMD Radeon R9 290X TRI-X OC 4096 Mb GDDR5). Used operating system is Linux Open SUSE 13.1 x86-64. Software package is made in the programming environment Kdevelop 4.1 (compiler gcc 4.8.2) in two versions: only for the CPU in the programming language C/C++; for the CPU and GPU in the programming language C/C++ + OpenCL. As a result of the research it was determined that when additional using the graphics accelerator (CPU + GPU, programming language C/C++ + OpenCL) computing performance increases more than 10 times compared to the basic computations.