Commit: 574894ffb85122c8f6a03eccaf3d8387b40c0405
Author: Bastien Montagne
Date: Sun May 29 20:14:42 2016 +0200
Branches: compositor-2016
https://developer.blender.org/rB574894ffb85122c8f6a03eccaf3d8387b40c0405
BKE's DerivedMesh: get rid of last OMP usage.
Not replacing with some BLI_task_stuff here, tests show this is pointless
(in absolute best case - i.e. single huge mesh in scene - parallelizing here
switches
from 0.8ms to 0.5ms for that piece of code - with something like 750ms per
frame update...).
===================================================================
M source/blender/blenkernel/intern/DerivedMesh.c
===================================================================
diff --git a/source/blender/blenkernel/intern/DerivedMesh.c
b/source/blender/blenkernel/intern/DerivedMesh.c
index a3e7e5f..bb5cc9c 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.c
+++ b/source/blender/blenkernel/intern/DerivedMesh.c
@@ -2003,15 +2003,10 @@ static void mesh_calc_modifiers(
DM_add_edge_layer(dm, CD_ORIGINDEX,
CD_CALLOC, NULL);
DM_add_poly_layer(dm, CD_ORIGINDEX,
CD_CALLOC, NULL);
-#pragma omp parallel sections if (dm->numVertData + dm->numEdgeData +
dm->numPolyData >= BKE_MESH_OMP_LIMIT)
- {
-#pragma omp section
- {
range_vn_i(DM_get_vert_data_layer(dm, CD_ORIGINDEX), dm->numVertData, 0); }
-#pragma omp section
- {
range_vn_i(DM_get_edge_data_layer(dm, CD_ORIGINDEX), dm->numEdgeData, 0); }
-#pragma omp section
- {
range_vn_i(DM_get_poly_data_layer(dm, CD_ORIGINDEX), dm->numPolyData, 0); }
- }
+ /* Not worth parallelizing this, gives
less than 0.1% overall speedup in best of best cases... */
+ range_vn_i(DM_get_vert_data_layer(dm,
CD_ORIGINDEX), dm->numVertData, 0);
+ range_vn_i(DM_get_edge_data_layer(dm,
CD_ORIGINDEX), dm->numEdgeData, 0);
+ range_vn_i(DM_get_poly_data_layer(dm,
CD_ORIGINDEX), dm->numPolyData, 0);
}
}
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