Drop pre CUDA 11 macro guards in occupancy calculation

sandialabs · Jan 6, 2023 · d34c751 · d34c751
1 parent 4954ce2
commit d34c751
Showing 1 changed file with 0 additions and 17 deletions.
diff --git a/core/src/Cuda/Kokkos_Cuda_BlockSize_Deduction.hpp b/core/src/Cuda/Kokkos_Cuda_BlockSize_Deduction.hpp
@@ -51,24 +51,7 @@ inline int cuda_max_active_blocks_per_sm(cudaDeviceProp const& properties,
                              : max_blocks_regs);
 
   // Limits due to blocks/SM
-#if CUDA_VERSION >= 11000
   int const max_blocks_per_sm = properties.maxBlocksPerMultiProcessor;
-#else
-  int const max_blocks_per_sm = [&properties]() {
-    switch (properties.major) {
-      case 3: return 16;
-      case 5:
-      case 6: return 32;
-      case 7: {
-        int isTuring = properties.minor == 5;
-        return (isTuring) ? 16 : 32;
-      }
-      default:
-        throw_runtime_exception("Unknown device in cuda block size deduction");
-        return 0;
-    }
-  }();
-#endif
 
   // Overall occupancy in blocks
   return std::min({max_blocks_regs, max_blocks_shmem, max_blocks_per_sm});