diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index 984a254..4017d1e 100644
--- a/MagickCore/effect.c
+++ b/MagickCore/effect.c
@@ -295,8 +295,7 @@
blur_view=AcquireAuthenticCacheView(blur_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((blur_image->rows*blur_image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) blur_image->rows; y++)
{
@@ -623,8 +622,7 @@
sharp_view=AcquireAuthenticCacheView(sharp_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((sharp_image->rows*sharp_image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) sharp_image->rows; y++)
{
@@ -954,8 +952,7 @@
blur_view=AcquireAuthenticCacheView(blur_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((image->rows*image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
@@ -1085,8 +1082,7 @@
blur_view=AcquireAuthenticCacheView(blur_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((blur_image->rows*blur_image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (x=0; x < (ssize_t) blur_image->columns; x++)
{
@@ -1297,8 +1293,7 @@
r=p+(y_offset*(columns+2)+x_offset);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static) \
- if ((rows*columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(columns,rows,64)
#endif
for (y=0; y < (ssize_t) rows; y++)
{
@@ -1335,8 +1330,7 @@
s=q-(y_offset*(columns+2)+x_offset);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static) \
- if ((rows*columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(columns,rows,64)
#endif
for (y=0; y < (ssize_t) rows; y++)
{
@@ -1962,8 +1956,7 @@
blur_view=AcquireAuthenticCacheView(blur_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((image->rows*image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
@@ -2741,8 +2734,7 @@
blur_view=AcquireAuthenticCacheView(blur_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((image->rows*image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
@@ -3037,8 +3029,7 @@
blur_view=AcquireAuthenticCacheView(blur_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((image->rows*image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
@@ -3292,8 +3283,7 @@
shade_view=AcquireAuthenticCacheView(shade_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((image->rows*image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
@@ -3621,8 +3611,7 @@
spread_view=AcquireAuthenticCacheView(spread_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,8) shared(progress,status) \
- if (((image->rows*image->columns) > 8192) && (key == ~0UL)) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentTres(image->columns,image->rows,key == ~0UL,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
@@ -3762,8 +3751,7 @@
unsharp_view=AcquireAuthenticCacheView(unsharp_image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(progress,status) \
- if ((image->rows*image->columns) > 8192) \
- num_threads(GetMagickResourceLimit(ThreadResource))
+ IsConcurrentDos(image->columns,image->rows,64)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{