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/libopencl/opencl_runtime_api.cc b/libopencl/opencl_runtime_api.cc
index 63f7c81..97a54d8 100644
--- a/libopencl/opencl_runtime_api.cc
+++ b/libopencl/opencl_runtime_api.cc
@@ -577,7 +577,7 @@ void _cl_program::Build(const char *options)
       }
       info.m_asm = tmp;
       info.m_symtab = gpgpu_ptx_sim_load_ptx_from_string( tmp, source_num );
-      gpgpu_ptxinfo_load_from_string( tmp, source_num);
+      gpgpu_ptxinfo_load_from_string( tmp, source_num );
       free(tmp);
    }
    printf("GPGPU-Sim OpenCL API: finished compiling OpenCL kernels.\n");