new chunk size option available in chunk_reduction.h

git-svn-id: https://phat.googlecode.com/svn/trunk@76 8e3bb3c2-eed4-f18f-5264-0b6c94e6926d

1 files changed, 5 insertions, 0 deletions

diff --git a/include/phat/algorithms/chunk_reduction.h b/include/phat/algorithms/chunk_reduction.h
index ebba266..5c927d7 100644
--- a/include/phat/algorithms/chunk_reduction.h
+++ b/include/phat/algorithms/chunk_reduction.h
@@ -107,7 +107,12 @@ namespace phat {
             std::vector<index> temp_chunk_boundaries;

             const index nr_columns = boundary_matrix.get_num_cols();

             

+            // size of chuks = sqrt(N)

             const index chunk_size = (index) sqrt( (float)nr_columns );

+

+            // size of chunks = N / num_threads

+            //const index chunk_size = nr_columns / omp_get_max_threads();

+            

             for ( index cur_col = 0; cur_col < nr_columns; cur_col++ )

                 if( cur_col % chunk_size == 0 )

                     temp_chunk_boundaries.push_back( cur_col );