- 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, 9 insertions, 0 deletions

diff --git a/src/abstract_hardware_model.cc b/src/abstract_hardware_model.cc
index 3f2883a..f779e3d 100644
--- a/src/abstract_hardware_model.cc
+++ b/src/abstract_hardware_model.cc
@@ -1,6 +1,7 @@
 #include "abstract_hardware_model.h"
 #include "cuda-sim/memory.h"
 #include "option_parser.h"
+#include "cuda-sim/ptx_ir.h"
 #include <algorithm>
 
 unsigned mem_access_t::sm_next_access_uid = 0;   
@@ -306,3 +307,11 @@ void warp_inst_t::generate_mem_accesses()
 
     m_mem_accesses_created=true;
 } 
+
+unsigned kernel_info_t::m_next_uid = 1;
+
+
+std::string kernel_info_t::name() const
+{
+    return m_kernel_entry->get_name();
+}