diff --git a/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_barrier.cpp b/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_barrier.cpp
index 14f828cd5..6e682aa38 100644
--- a/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_barrier.cpp
+++ b/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_barrier.cpp
@@ -37,6 +37,13 @@ struct CommandBufferBarrierNotNullQueue : public BasicCommandBufferTest
 
         return CL_SUCCESS;
     }
+
+    bool Skip() override
+    {
+        if (BasicCommandBufferTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_multi_device");
+    }
 };
 
 // CL_INVALID_COMMAND_BUFFER_KHR if command_buffer is not a valid
diff --git a/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_copy_image.cpp b/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_copy_image.cpp
index 843c0d54e..80bb3b024 100644
--- a/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_copy_image.cpp
+++ b/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_copy_image.cpp
@@ -28,15 +28,20 @@ struct CommandCopyBaseTest : BasicCommandBufferTest
 
     cl_int SetUp(int elements) override
     {
+        num_elements = elements;
+        origin[0] = origin[1] = origin[2] = 0;
+        region[0] = elements / 64;
+        region[1] = 64;
+        region[2] = 1;
         cl_int error = BasicCommandBufferTest::SetUp(elements);
         test_error(error, "BasicCommandBufferTest::SetUp failed");
 
-        src_image = create_image_2d(context, CL_MEM_READ_ONLY, &formats, 512,
-                                    512, 0, NULL, &error);
+        src_image = create_image_2d(context, CL_MEM_READ_ONLY, &formats,
+                                    elements / 64, 64, 0, NULL, &error);
         test_error(error, "create_image_2d failed");
 
-        dst_image = create_image_2d(context, CL_MEM_WRITE_ONLY, &formats, 512,
-                                    512, 0, NULL, &error);
+        dst_image = create_image_2d(context, CL_MEM_WRITE_ONLY, &formats,
+                                    elements / 64, 64, 0, NULL, &error);
         test_error(error, "create_image_2d failed");
 
         return CL_SUCCESS;
@@ -58,8 +63,8 @@ struct CommandCopyBaseTest : BasicCommandBufferTest
     clMemWrapper src_image;
     clMemWrapper dst_image;
     const cl_image_format formats = { CL_RGBA, CL_UNSIGNED_INT8 };
-    const size_t origin[3] = { 0, 0, 0 };
-    const size_t region[3] = { 512, 512, 1 };
+    size_t origin[3];
+    size_t region[3];
 };
 
 namespace {
@@ -81,7 +86,7 @@ struct CommandBufferCopyImageQueueNotNull : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(command_buffer, queue, src_image,
-                                              dst_image, origin, region, 0, 0,
+                                              out_mem, origin, region, 0, 0,
                                               nullptr, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_COMMAND_QUEUE,
@@ -119,8 +124,8 @@ struct CommandBufferCopyImageContextNotSame : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image_ctx, dst_image, origin, region,
-            0, 0, nullptr, nullptr, nullptr);
+            command_buffer, nullptr, src_image_ctx, out_mem, origin, region, 0,
+            0, nullptr, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_CONTEXT,
                                "clCommandCopyImageToBufferKHR should return "
@@ -159,7 +164,7 @@ struct CommandBufferCopyImageContextNotSame : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image, dst_image, origin, region, 0, 0,
+            command_buffer, nullptr, src_image, out_mem, origin, region, 0, 0,
             nullptr, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_CONTEXT,
@@ -179,11 +184,11 @@ struct CommandBufferCopyImageContextNotSame : public CommandCopyBaseTest
         test_error(error, "Failed to create context");
 
         src_image_ctx = create_image_2d(context1, CL_MEM_READ_ONLY, &formats,
-                                        512, 512, 0, NULL, &error);
+                                        elements / 64, 64, 0, NULL, &error);
         test_error(error, "create_image_2d failed");
 
         dst_image_ctx = create_image_2d(context1, CL_MEM_WRITE_ONLY, &formats,
-                                        512, 512, 0, NULL, &error);
+                                        elements / 64, 64, 0, NULL, &error);
         test_error(error, "create_image_2d failed");
 
         queue1 = clCreateCommandQueue(context1, device, 0, &error);
@@ -220,7 +225,7 @@ struct CommandBufferCopySyncPointsNullOrNumZero : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image, dst_image, origin, region, 0, 1,
+            command_buffer, nullptr, src_image, out_mem, origin, region, 0, 1,
             &invalid_point, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_SYNC_POINT_WAIT_LIST_KHR,
@@ -239,7 +244,7 @@ struct CommandBufferCopySyncPointsNullOrNumZero : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image, dst_image, origin, region, 0, 1,
+            command_buffer, nullptr, src_image, out_mem, origin, region, 0, 1,
             nullptr, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_SYNC_POINT_WAIT_LIST_KHR,
@@ -263,7 +268,7 @@ struct CommandBufferCopySyncPointsNullOrNumZero : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image, dst_image, origin, region, 0, 0,
+            command_buffer, nullptr, src_image, out_mem, origin, region, 0, 0,
             &point, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_SYNC_POINT_WAIT_LIST_KHR,
@@ -294,7 +299,7 @@ struct CommandBufferCopyImageInvalidCommandBuffer : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(nullptr, nullptr, src_image,
-                                              dst_image, origin, region, 0, 0,
+                                              out_mem, origin, region, 0, 0,
                                               nullptr, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_COMMAND_BUFFER_KHR,
@@ -327,7 +332,7 @@ struct CommandBufferCopyImageFinalizedCommandBuffer : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image, dst_image, origin, region, 0, 0,
+            command_buffer, nullptr, src_image, out_mem, origin, region, 0, 0,
             nullptr, nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_OPERATION,
@@ -358,7 +363,7 @@ struct CommandBufferCopyImageMutableHandleNotNull : public CommandCopyBaseTest
                                TEST_FAIL);
 
         error = clCommandCopyImageToBufferKHR(
-            command_buffer, nullptr, src_image, dst_image, origin, region, 0, 0,
+            command_buffer, nullptr, src_image, out_mem, origin, region, 0, 0,
             nullptr, nullptr, &mutable_handle);
 
         test_failure_error_ret(error, CL_INVALID_VALUE,
diff --git a/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_svm_mem.cpp b/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_svm_mem.cpp
index 4d4e2cfb7..b5d2355b2 100644
--- a/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_svm_mem.cpp
+++ b/test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_svm_mem.cpp
@@ -50,6 +50,13 @@ struct CommandBufferCommandSVMQueueNotNull : public BasicSVMCommandBufferTest
     }
 
     const cl_char pattern_1 = 0x14;
+
+    bool Skip() override
+    {
+        if (BasicSVMCommandBufferTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_multi_device");
+    }
 };
 
 // CL_INVALID_SYNC_POINT_WAIT_LIST_KHR if sync_point_wait_list is NULL and
diff --git a/test_conformance/extensions/cl_khr_command_buffer/negative_command_nd_range_kernel.cpp b/test_conformance/extensions/cl_khr_command_buffer/negative_command_nd_range_kernel.cpp
index e44e38c09..ccbefd85f 100644
--- a/test_conformance/extensions/cl_khr_command_buffer/negative_command_nd_range_kernel.cpp
+++ b/test_conformance/extensions/cl_khr_command_buffer/negative_command_nd_range_kernel.cpp
@@ -38,6 +38,13 @@ struct CommandNDRangeKernelQueueNotNull : public BasicCommandBufferTest
 
         return CL_SUCCESS;
     }
+
+    bool Skip() override
+    {
+        if (BasicCommandBufferTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_multi_device");
+    }
 };
 
 // CL_INVALID_CONTEXT if the context associated with command_queue,
@@ -108,7 +115,7 @@ struct CommandNDRangeKerneSyncPointsNullOrNumZero
         cl_sync_point_khr invalid_point = 0;
         cl_sync_point_khr* invalid_sync_points[] = { &invalid_point };
         cl_int error = clCommandNDRangeKernelKHR(
-            command_buffer, nullptr, nullptr, kernel, 0, nullptr, &num_elements,
+            command_buffer, nullptr, nullptr, kernel, 1, nullptr, &num_elements,
             nullptr, 1, invalid_sync_points[0], nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_SYNC_POINT_WAIT_LIST_KHR,
@@ -134,7 +141,7 @@ struct CommandNDRangeKerneSyncPointsNullOrNumZero
 
         cl_sync_point_khr* sync_points[] = { &point };
         error = clCommandNDRangeKernelKHR(
-            command_buffer, nullptr, nullptr, kernel, 0, nullptr, &num_elements,
+            command_buffer, nullptr, nullptr, kernel, 1, nullptr, &num_elements,
             nullptr, 0, sync_points[0], nullptr, nullptr);
 
         test_failure_error_ret(error, CL_INVALID_SYNC_POINT_WAIT_LIST_KHR,