From 112a3a2e3c9d17af420d2389f68a35407c692744 Mon Sep 17 00:00:00 2001 From: tgrogers Date: Fri, 29 Jun 2018 17:34:22 -0400 Subject: Allowing modern GPU configrations to properly run PTXPLUS. There are several problems with this: 1) To get proper occupancy, based on register file usage, you must querry ptxas with the sm version that corresponds to the register usage in the config file. To enable this, a new config option has been added that determines what sm version you pass to ptxas to compute reg-usage. This configuration option is always required in the gpgpusim.config file 2) If you are running PTXPLUS with a modern card (i.e. volta/pascal), you need ptxas from CUDA 9.1. However since PTXPLUS only supports sm_13 - you need a version of CUDA where cudaobjectdump supports sm_1x. This ended at CUDA 5 - and PTXPLUS requires CUDA 4.2. Therefore, to run PTXPLUS on a modern card, you need CUDA 4.2 + modern CUDA installed. To fascilitate this, a new envronment varaible is added and the setup envrionment script prints an appropraite warning if you are using a newer CUDA. We have tried to make this as fail-proof as possible - and die appropraitely when something is wrong. --- configs/GTX480/gpgpusim.config | 1 + 1 file changed, 1 insertion(+) (limited to 'configs/GTX480') diff --git a/configs/GTX480/gpgpusim.config b/configs/GTX480/gpgpusim.config index 436cb41..ee90c12 100644 --- a/configs/GTX480/gpgpusim.config +++ b/configs/GTX480/gpgpusim.config @@ -22,6 +22,7 @@ # shader core pipeline config -gpgpu_shader_registers 32768 +-gpgpu_occupancy_sm_number 20 # This implies a maximum of 48 warps/SM -gpgpu_shader_core_pipeline 1536:32 -- cgit v1.3