Writing Parallel software Intro Why would you use parallelism From the software point of view 2 main targets o multiplexing different tasks on the same machine o making one heavy task faster o by running different subparts of it in parallel From the hardware point of view o do not waste available resources o make best value for money Net consequence:we need to find things to be done in parallel what find expect 6/46 S.Ponce-CERNWriting Parallel software 6 / 46 S. Ponce - CERN Intro Threading Safety Solutions what find expect Why would you use parallelism ? From the software point of view 2 main targets multiplexing different tasks on the same machine making one heavy task faster by running different subparts of it in parallel From the hardware point of view do not waste available resources make best value for money Net consequence : we need to find things to be done in parallel