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.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/cuda-sim/ptx_loader.h b/src/cuda-sim/ptx_loader.h
index d3d0c92..cb02eda 100644
--- a/src/cuda-sim/ptx_loader.h
+++ b/src/cuda-sim/ptx_loader.h
@@ -32,7 +32,7 @@
 extern bool g_override_embedded_ptx;
  
 class symbol_table *gpgpu_ptx_sim_load_ptx_from_string( const char *p, unsigned source_num );
-void gpgpu_ptxinfo_load_from_string( const char *p_for_info, unsigned source_num, unsigned sm_version=20 );
+void gpgpu_ptxinfo_load_from_string( const char *p_for_info, unsigned source_num );
 char* gpgpu_ptx_sim_convert_ptx_and_sass_to_ptxplus(const std::string ptx_str, const std::string sass_str, const std::string elf_str);
 bool keep_intermediate_files();