diff options
| -rw-r--r-- | thrust/system/cuda/detail/reduce_by_key.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/thrust/system/cuda/detail/reduce_by_key.h b/thrust/system/cuda/detail/reduce_by_key.h index 7392132d..797a834a 100644 --- a/thrust/system/cuda/detail/reduce_by_key.h +++ b/thrust/system/cuda/detail/reduce_by_key.h @@ -134,10 +134,13 @@ namespace __reduce_by_key { { enum { + MAX_INPUT_BYTES = mpl::max<size_t, sizeof(Key), sizeof(Value)>::value, + COMBINED_INPUT_BYTES = sizeof(Key) + sizeof(Value), + NOMINAL_4B_ITEMS_PER_THREAD = 6, ITEMS_PER_THREAD = - (Tuning::MAX_INPUT_BYTES <= 8) + (MAX_INPUT_BYTES <= 8) ? 6 : mpl::min< int, @@ -146,8 +149,8 @@ namespace __reduce_by_key { int, 1, ((NOMINAL_4B_ITEMS_PER_THREAD * 8) + - Tuning::COMBINED_INPUT_BYTES - 1) / - Tuning::COMBINED_INPUT_BYTES>::value>::value, + COMBINED_INPUT_BYTES - 1) / + COMBINED_INPUT_BYTES>::value>::value, }; typedef PtxPolicy<128, @@ -163,10 +166,13 @@ namespace __reduce_by_key { { enum { + MAX_INPUT_BYTES = mpl::max<size_t, sizeof(Key), sizeof(Value)>::value, + COMBINED_INPUT_BYTES = sizeof(Key) + sizeof(Value), + NOMINAL_4B_ITEMS_PER_THREAD = 9, ITEMS_PER_THREAD = - (Tuning::MAX_INPUT_BYTES <= 8) + (MAX_INPUT_BYTES <= 8) ? 9 : mpl::min< int, @@ -175,8 +181,8 @@ namespace __reduce_by_key { int, 1, ((NOMINAL_4B_ITEMS_PER_THREAD * 8) + - Tuning::COMBINED_INPUT_BYTES - 1) / - Tuning::COMBINED_INPUT_BYTES>::value>::value, + COMBINED_INPUT_BYTES - 1) / + COMBINED_INPUT_BYTES>::value>::value, }; typedef PtxPolicy<256, |