diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gpgpu-sim/shader.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc index ceb67cb..5be7a9c 100644 --- a/src/gpgpu-sim/shader.cc +++ b/src/gpgpu-sim/shader.cc @@ -1743,6 +1743,20 @@ void barrier_set_t::warp_exit( unsigned warp_id ) // caller needs to verify all threads in warp are done, e.g., by checking PDOM stack to // see it has only one entry during exit_impl() m_warp_active.reset(warp_id); + + // test for barrier release + cta_to_warp_t::iterator w=m_cta_to_warps.begin(); + for (; w != m_cta_to_warps.end(); ++w) { + if (w->second.test(warp_id) == true) break; + } + warp_set_t warps_in_cta = w->second; + warp_set_t at_barrier = warps_in_cta & m_warp_at_barrier; + warp_set_t active = warps_in_cta & m_warp_active; + + if( at_barrier == active ) { + // all warps have reached barrier, so release waiting warps... + m_warp_at_barrier &= ~at_barrier; + } } // assertions |