- Checkpointing new support for concurrent kernel execution (CUDA only, not OpenCL)

  This changelist adds full support for streams supported by a new class,
  stream_manager and enables concurrent execution of kernels from different
  streams.

- fast_regression.sh fails for simpleMultiCopy, simpleStreams (other tests
  passing)

** Known issues **
- Kernel parameter passing is not done correctly for concurrent kernel execution
  (somehow concurrentKernels is not affected by this): the parameters are
  stored inside function_info, which is shared among parallel kernel launches
  so that the values passed into the launch are likely to get overwritten if
  multiple grids are launched in parallel streams.

- Statistics are printed out whenever the simulation thread runs out of
  cuda commands (doesn't make sense to print out when a kernel ends during
  concurrent kernel execution).  This will probably require further tweaking
  so as to be more compatible with data collection scripts.

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 8302]

1 files changed, 4 insertions, 13 deletions

diff --git a/src/gpgpusim_entrypoint.h b/src/gpgpusim_entrypoint.h
index 689dcf9..b310752 100644
--- a/src/gpgpusim_entrypoint.h
+++ b/src/gpgpusim_entrypoint.h
@@ -71,19 +71,10 @@
 extern time_t g_simulation_starttime;
 
 class gpgpu_sim *gpgpu_ptx_sim_init_perf();
+void start_sim_thread(int api);
 
-int gpgpu_cuda_ptx_sim_main_perf( kernel_info_t grid,
-                                   struct dim3 gridDim, 
-                                   struct dim3 blockDim, 
-                                   gpgpu_ptx_sim_arg_list_t grid_params );
+int gpgpu_cuda_ptx_sim_main_perf( kernel_info_t grid );
+int gpgpu_opencl_ptx_sim_main_perf( kernel_info_t grid );
+int gpgpu_opencl_ptx_sim_main_func( kernel_info_t grid );
 
-int gpgpu_opencl_ptx_sim_main_perf( kernel_info_t grid,
-                                  struct dim3 gridDim, 
-                                  struct dim3 blockDim, 
-                                  gpgpu_ptx_sim_arg_list_t grid_params );
-
-int gpgpu_opencl_ptx_sim_main_func( kernel_info_t grid,
-                                  struct dim3 gridDim, 
-                                  struct dim3 blockDim, 
-                                  gpgpu_ptx_sim_arg_list_t grid_params );
 #endif