diff -rauN arrayfire-full-3.6.3/src/api/c/homography.cpp arrayfire-full-3.6.3-dim-cast/src/api/c/homography.cpp
--- arrayfire-full-3.6.3/src/api/c/homography.cpp	2019-04-22 19:43:11.000000000 +0200
+++ arrayfire-full-3.6.3-dim-cast/src/api/c/homography.cpp	2019-05-10 10:56:16.706666685 +0200
@@ -30,7 +30,7 @@
     Array<T> bestH = createEmptyArray<T>(af::dim4(3, 3));
     af_array initial;
     unsigned d    = (iterations + 256 - 1) / 256;
-    dim_t rdims[] = {4, d * 256};
+    dim_t rdims[] = {4, static_cast<dim_t>(d) * 256};
     AF_CHECK(af_randu(&initial, 2, rdims, f32));
     inliers =
         homography<T>(bestH, getArray<float>(x_src), getArray<float>(y_src),
diff -rauN arrayfire-full-3.6.3/src/backend/opencl/kernel/ireduce.hpp arrayfire-full-3.6.3-dim-cast/src/backend/opencl/kernel/ireduce.hpp
--- arrayfire-full-3.6.3/src/backend/opencl/kernel/ireduce.hpp	2019-04-22 19:43:11.000000000 +0200
+++ arrayfire-full-3.6.3-dim-cast/src/backend/opencl/kernel/ireduce.hpp	2019-05-10 10:57:31.576666685 +0200
@@ -308,7 +308,7 @@
         uint groups_x = divup(in.info.dims[0], threads_x * REPEAT);
         uint groups_y = divup(in.info.dims[1], threads_y);
         Array<T> tmp  = createEmptyArray<T>(
-            {groups_x, in.info.dims[1], in.info.dims[2], in.info.dims[3]});
+            {static_cast<dim_t>(groups_x), in.info.dims[1], in.info.dims[2], in.info.dims[3]});
 
         int tmp_elements = tmp.elements();
         cl::Buffer *tidx = bufferAlloc(tmp_elements * sizeof(uint));
diff -rauN arrayfire-full-3.6.3/src/backend/opencl/kernel/reduce.hpp arrayfire-full-3.6.3-dim-cast/src/backend/opencl/kernel/reduce.hpp
--- arrayfire-full-3.6.3/src/backend/opencl/kernel/reduce.hpp	2019-04-22 19:43:11.000000000 +0200
+++ arrayfire-full-3.6.3-dim-cast/src/backend/opencl/kernel/reduce.hpp	2019-05-10 10:58:02.416666685 +0200
@@ -263,7 +263,7 @@
         uint groups_x = divup(in.info.dims[0], threads_x * REPEAT);
         uint groups_y = divup(in.info.dims[1], threads_y);
         Array<To> tmp = createEmptyArray<To>(
-            {groups_x, in.info.dims[1], in.info.dims[2], in.info.dims[3]});
+            {{static_cast<dim_t>(groups_x), in.info.dims[1], in.info.dims[2], in.info.dims[3]});
 
         int tmp_elements = tmp.elements();