OpenCL-CTS/test_conformance/api/test_queries.cpp

//
// Copyright (c) 2017 The Khronos Group Inc.
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "testBase.h"
#include "harness/imageHelpers.h"
#include "harness/propertyHelpers.h"
#include <stdlib.h>
#include <ctype.h>
#include <algorithm>

int test_get_platform_info(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
{
    cl_platform_id platform;
    cl_int error;
    char buffer[ 16384 ];
    size_t length;

    // Get the platform to use
    error = clGetPlatformIDs(1, &platform, NULL);
    test_error( error, "Unable to get platform" );

    // Platform profile should either be FULL_PROFILE or EMBEDDED_PROFILE
    error = clGetPlatformInfo(platform,  CL_PLATFORM_PROFILE, sizeof( buffer ), buffer, &length );
    test_error( error, "Unable to get platform profile string" );

    log_info("Returned CL_PLATFORM_PROFILE %s.\n", buffer);

    if( strcmp( buffer, "FULL_PROFILE" ) != 0 && strcmp( buffer, "EMBEDDED_PROFILE" ) != 0 )
    {
        log_error( "ERROR: Returned platform profile string is not a valid string by OpenCL 1.2! (Returned: %s)\n", buffer );
        return -1;
    }
    if( strlen( buffer )+1 != length )
    {
        log_error( "ERROR: Returned length of profile string is incorrect (actual length: %d, returned length: %d)\n",
                  (int)strlen( buffer )+1, (int)length );
        return -1;
    }

    // Check just length return
    error = clGetPlatformInfo(platform,  CL_PLATFORM_PROFILE, 0, NULL, &length );
    test_error( error, "Unable to get platform profile length" );
    if( strlen( (char *)buffer )+1 != length )
    {
        log_error( "ERROR: Returned length of profile string is incorrect (actual length: %d, returned length: %d)\n",
                  (int)strlen( (char *)buffer )+1, (int)length );
        return -1;
    }


    // Platform version should fit the regex "OpenCL *[0-9]+\.[0-9]+"
    error = clGetPlatformInfo(platform,  CL_PLATFORM_VERSION, sizeof( buffer ), buffer, &length );
    test_error( error, "Unable to get platform version string" );

    log_info("Returned CL_PLATFORM_VERSION %s.\n", buffer);

    if( memcmp( buffer, "OpenCL ", strlen( "OpenCL " ) ) != 0 )
    {
        log_error( "ERROR: Initial part of platform version string does not match required format! (returned: %s)\n", (char *)buffer );
        return -1;
    }
    char *p1 = (char *)buffer + strlen( "OpenCL " );
    while( *p1 == ' ' )
        p1++;
    char *p2 = p1;
    while( isdigit( *p2 ) )
        p2++;
    if( *p2 != '.' )
    {
        log_error( "ERROR: Numeric part of platform version string does not match required format! (returned: %s)\n", (char *)buffer );
        return -1;
    }
    char *p3 = p2 + 1;
    while( isdigit( *p3 ) )
        p3++;
    if( *p3 != ' ' )
    {
        log_error( "ERROR: space expected after minor version number! (returned: %s)\n", (char *)buffer );
        return -1;
    }
    *p2 = ' '; // Put in a space for atoi below.
    p2++;

    // make sure it is null terminated
    for( ; p3 != buffer + length; p3++ )
        if( *p3 == '\0' )
            break;
    if( p3 == buffer + length )
    {
        log_error( "ERROR: platform version string is not NUL terminated!\n" );
        return -1;
    }

    int major = atoi( p1 );
    int minor = atoi( p2 );
    int minor_revision = 2;
    if( major * 10 + minor < 10 + minor_revision )
    {
        log_error( "ERROR: OpenCL profile version returned is less than 1.%d!\n", minor_revision );
        return -1;
    }

    // Sanity checks on the returned values
    if( length != strlen( (char *)buffer ) + 1)
    {
        log_error( "ERROR: Returned length of version string does not match actual length (actual: %d, returned: %d)\n", (int)strlen( (char *)buffer )+1, (int)length );
        return -1;
    }

    // Check just length
    error = clGetPlatformInfo(platform,  CL_PLATFORM_VERSION, 0, NULL, &length );
    test_error( error, "Unable to get platform version length" );
    if( length != strlen( (char *)buffer )+1 )
    {
        log_error( "ERROR: Returned length of version string does not match actual length (actual: %d, returned: %d)\n", (int)strlen( buffer )+1, (int)length );
        return -1;
    }

    return 0;
}

template <typename T>
int sampler_param_test(cl_sampler sampler, cl_sampler_info param_name,
                       T expected, const char *name)
{
    size_t size;
    T val;
    int error = clGetSamplerInfo(sampler, param_name, sizeof(val), &val, &size);
    test_error(error, "Unable to get sampler info");
    if (val != expected)
    {
        test_fail("ERROR: Sampler %s did not validate!\n", name);
    }
    if (size != sizeof(val))
    {
        test_fail("ERROR: Returned size of sampler %s does not validate! "
                  "(expected %d, got %d)\n",
                  name, (int)sizeof(val), (int)size);
    }
    return 0;
}

static cl_int normalized_coord_values[] = { CL_TRUE, CL_FALSE };
static cl_addressing_mode addressing_mode_values[] = {
    CL_ADDRESS_NONE, CL_ADDRESS_CLAMP_TO_EDGE, CL_ADDRESS_CLAMP,
    CL_ADDRESS_REPEAT, CL_ADDRESS_MIRRORED_REPEAT
};
static cl_filter_mode filter_mode_values[] = { CL_FILTER_NEAREST,
                                               CL_FILTER_LINEAR };

int test_sampler_params(cl_device_id deviceID, cl_context context,
                        bool is_compatibility, int norm_coord_num,
                        int addr_mod_num, int filt_mod_num)
{
    cl_uint refCount;
    size_t size;
    int error;

    clSamplerWrapper sampler;
    cl_sampler_properties properties[] = {
        CL_SAMPLER_NORMALIZED_COORDS,
        normalized_coord_values[norm_coord_num],
        CL_SAMPLER_ADDRESSING_MODE,
        addressing_mode_values[addr_mod_num],
        CL_SAMPLER_FILTER_MODE,
        filter_mode_values[filt_mod_num],
        0
    };

    if (is_compatibility)
    {
        sampler =
            clCreateSampler(context, normalized_coord_values[norm_coord_num],
                            addressing_mode_values[addr_mod_num],
                            filter_mode_values[filt_mod_num], &error);
        test_error(error, "Unable to create sampler to test with");
    }
    else
    {
        sampler = clCreateSamplerWithProperties(context, properties, &error);
        test_error(error, "Unable to create sampler to test with");
    }

    error = clGetSamplerInfo(sampler, CL_SAMPLER_REFERENCE_COUNT,
                             sizeof(refCount), &refCount, &size);
    test_error(error, "Unable to get sampler ref count");
    test_assert_error(size == sizeof(refCount),
                      "Returned size of sampler refcount does not validate!\n");

    error = sampler_param_test(sampler, CL_SAMPLER_CONTEXT, context, "context");
    test_error(error, "param checking failed");

    error = sampler_param_test(sampler, CL_SAMPLER_ADDRESSING_MODE,
                               addressing_mode_values[addr_mod_num],
                               "addressing mode");
    test_error(error, "param checking failed");

    error = sampler_param_test(sampler, CL_SAMPLER_FILTER_MODE,
                               filter_mode_values[filt_mod_num], "filter mode");
    test_error(error, "param checking failed");

    error = sampler_param_test(sampler, CL_SAMPLER_NORMALIZED_COORDS,
                               normalized_coord_values[norm_coord_num],
                               "normalized coords");
    test_error(error, "param checking failed");

    Version version = get_device_cl_version(deviceID);
    if (version >= Version(3, 0))
    {
        std::vector<cl_sampler_properties> test_properties(
            properties, properties + ARRAY_SIZE(properties));

        std::vector<cl_sampler_properties> check_properties;
        size_t set_size;

        error = clGetSamplerInfo(sampler, CL_SAMPLER_PROPERTIES, 0, NULL,
                                 &set_size);
        test_error(
            error,
            "clGetSamplerInfo failed asking for CL_SAMPLER_PROPERTIES size.");

        if (set_size != test_properties.size() * sizeof(cl_sampler_properties))
        {
            log_error("ERROR: CL_SAMPLER_PROPERTIES size is %d, expected %d.\n",
                      set_size,
                      test_properties.size() * sizeof(cl_sampler_properties));
            return TEST_FAIL;
        }

        cl_uint number_of_props = set_size / sizeof(cl_sampler_properties);
        check_properties.resize(number_of_props);
        error = clGetSamplerInfo(sampler, CL_SAMPLER_PROPERTIES, set_size,
                                 check_properties.data(), 0);
        test_error(error,
                   "clGetSamplerInfo failed asking for CL_SAMPLER_PROPERTIES.");

        error = compareProperties(check_properties, test_properties);
        test_error(error, "checkProperties mismatch.");
    }
    return 0;
}

int get_sampler_info_params(cl_device_id deviceID, cl_context context,
                            bool is_compatibility)
{
    for (int norm_coord_num = 0;
         norm_coord_num < ARRAY_SIZE(normalized_coord_values); norm_coord_num++)
    {
        for (int addr_mod_num = 0;
             addr_mod_num < ARRAY_SIZE(addressing_mode_values); addr_mod_num++)
        {
            if ((normalized_coord_values[norm_coord_num] == CL_FALSE)
                && ((addressing_mode_values[addr_mod_num] == CL_ADDRESS_REPEAT)
                    || (addressing_mode_values[addr_mod_num]
                        == CL_ADDRESS_MIRRORED_REPEAT)))
            {
                continue;
            }
            for (int filt_mod_num = 0;
                 filt_mod_num < ARRAY_SIZE(filter_mode_values); filt_mod_num++)
            {
                int err = test_sampler_params(deviceID, context,
                                              is_compatibility, norm_coord_num,
                                              addr_mod_num, filt_mod_num);
                test_error(err, "testing clGetSamplerInfo params failed");
            }
        }
    }
    return 0;
}
int test_get_sampler_info(cl_device_id deviceID, cl_context context,
                          cl_command_queue queue, int num_elements)
{
    int error;
    PASSIVE_REQUIRE_IMAGE_SUPPORT(deviceID)

    error = get_sampler_info_params(deviceID, context, false);
    test_error(error, "Test Failed");

    return 0;
}

int test_get_sampler_info_compatibility(cl_device_id deviceID,
                                        cl_context context,
                                        cl_command_queue queue,
                                        int num_elements)
{
    int error;
    PASSIVE_REQUIRE_IMAGE_SUPPORT(deviceID)

    error = get_sampler_info_params(deviceID, context, true);
    test_error(error, "Test Failed");

    return 0;
}

template <typename T>
int command_queue_param_test(cl_command_queue queue,
                             cl_command_queue_info param_name, T expected,
                             const char *name)
{
    size_t size;
    T val;
    int error =
        clGetCommandQueueInfo(queue, param_name, sizeof(val), &val, &size);
    test_error(error, "Unable to get command queue info");
    if (val != expected)
    {
        test_fail("ERROR: Command queue %s did not validate!\n", name);
    }
    if (size != sizeof(val))
    {
        test_fail("ERROR: Returned size of command queue %s does not validate! "
                  "(expected %d, got %d)\n",
                  name, (int)sizeof(val), (int)size);
    }
    return 0;
}

#define MIN_NUM_COMMAND_QUEUE_PROPERTIES 2
#define OOO_NUM_COMMAND_QUEUE_PROPERTIES 4
static cl_command_queue_properties property_options[] = {
    0,

    CL_QUEUE_PROFILING_ENABLE,

    CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,

    CL_QUEUE_PROFILING_ENABLE | CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,

    CL_QUEUE_ON_DEVICE | CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,

    CL_QUEUE_PROFILING_ENABLE | CL_QUEUE_ON_DEVICE
        | CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,

    CL_QUEUE_ON_DEVICE | CL_QUEUE_ON_DEVICE_DEFAULT
        | CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,

    CL_QUEUE_PROFILING_ENABLE | CL_QUEUE_ON_DEVICE | CL_QUEUE_ON_DEVICE_DEFAULT
        | CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE
};

int check_get_command_queue_info_params(cl_device_id deviceID,
                                        cl_context context,
                                        bool is_compatibility)
{
    int error;
    size_t size;

    cl_queue_properties host_queue_props, device_queue_props;
    cl_queue_properties queue_props[] = { CL_QUEUE_PROPERTIES, 0, 0 };

    clGetDeviceInfo(deviceID, CL_DEVICE_QUEUE_ON_HOST_PROPERTIES,
                    sizeof(host_queue_props), &host_queue_props, NULL);
    log_info("CL_DEVICE_QUEUE_ON_HOST_PROPERTIES is %d\n",
             (int)host_queue_props);
    clGetDeviceInfo(deviceID, CL_DEVICE_QUEUE_ON_DEVICE_PROPERTIES,
                    sizeof(device_queue_props), &device_queue_props, NULL);
    log_info("CL_DEVICE_QUEUE_ON_HOST_PROPERTIES is %d\n",
             (int)device_queue_props);

    auto version = get_device_cl_version(deviceID);

    // Are on device queues supported
    bool on_device_supported =
        (version >= Version(2, 0) && version < Version(3, 0))
        || (version >= Version(3, 0) && device_queue_props != 0);

    int num_test_options = MIN_NUM_COMMAND_QUEUE_PROPERTIES;
    if (host_queue_props & CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE)
    {
        // Test out-of-order queues properties if supported
        num_test_options = OOO_NUM_COMMAND_QUEUE_PROPERTIES;
    }
    if (on_device_supported && !is_compatibility)
    {
        // Test queue on device if supported (in this case out-of-order must
        // also be supported)
        num_test_options = ARRAY_SIZE(property_options);
    }

    for (int i = 0; i < num_test_options; i++)
    {
        queue_props[1] = property_options[i];
        clCommandQueueWrapper queue;

        if (is_compatibility)
        {
            queue =
                clCreateCommandQueue(context, deviceID, queue_props[1], &error);
            test_error(error, "Unable to create command queue to test with");
        }
        else
        {
            queue = clCreateCommandQueueWithProperties(context, deviceID,
                                                       &queue_props[0], &error);
            test_error(error, "Unable to create command queue to test with");
        }

        cl_uint refCount;
        error = clGetCommandQueueInfo(queue, CL_QUEUE_REFERENCE_COUNT,
                                      sizeof(refCount), &refCount, &size);
        test_error(error, "Unable to get command queue reference count");
        test_assert_error(size == sizeof(refCount),
                          "Returned size of command queue reference count does "
                          "not validate!\n");

        error = command_queue_param_test(queue, CL_QUEUE_CONTEXT, context,
                                         "context");
        test_error(error, "param checking failed");

        error = command_queue_param_test(queue, CL_QUEUE_DEVICE, deviceID,
                                         "deviceID");
        test_error(error, "param checking failed");

        error = command_queue_param_test(queue, CL_QUEUE_PROPERTIES,
                                         queue_props[1], "properties");
        test_error(error, "param checking failed");
    }
    return 0;
}
int test_get_command_queue_info(cl_device_id deviceID, cl_context context,
                                cl_command_queue ignoreQueue, int num_elements)
{
    int error = check_get_command_queue_info_params(deviceID, context, false);
    test_error(error, "Test Failed");
    return 0;
}

int test_get_command_queue_info_compatibility(cl_device_id deviceID,
                                              cl_context context,
                                              cl_command_queue ignoreQueue,
                                              int num_elements)
{
    int error = check_get_command_queue_info_params(deviceID, context, true);
    test_error(error, "Test Failed");
    return 0;
}

int test_get_context_info(cl_device_id deviceID, cl_context context, cl_command_queue ignoreQueue, int num_elements)
{
    int error;
    size_t size;
    cl_context_properties props;

    error = clGetContextInfo( context, CL_CONTEXT_PROPERTIES, sizeof( props ), &props, &size );
    test_error( error, "Unable to get context props" );

    if (size == 0) {
        // Valid size
        return 0;
    } else if (size == sizeof(cl_context_properties)) {
        // Data must be NULL
        if (props != 0) {
            log_error("ERROR: Returned properties is no NULL.\n");
            return -1;
        }
        // Valid data and size
        return 0;
    }
    // Size was not 0 or 1
    log_error( "ERROR: Returned size of context props is not valid! (expected 0 or %d, got %d)\n",
              (int)sizeof(cl_context_properties), (int)size );
    return -1;
}

#define TEST_MEM_OBJECT_PARAM( mem, paramName, val, expected, name, type, cast )    \
error = clGetMemObjectInfo( mem, paramName, sizeof( val ), &val, &size );        \
test_error( error, "Unable to get mem object " name );                            \
if( val != expected )                                                                \
{                                                                                    \
log_error( "ERROR: Mem object " name " did not validate! (expected " type ", got " type ")\n", (cast)(expected), (cast)val );    \
return -1;                                                                        \
}            \
if( size != sizeof( val ) )                \
{                                        \
log_error( "ERROR: Returned size of mem object " name " does not validate! (expected %d, got %d)\n", (int)sizeof( val ), (int)size );    \
return -1;    \
}

void CL_CALLBACK mem_obj_destructor_callback( cl_mem, void *data )
{
    free( data );
}

// All possible combinations of valid cl_mem_flags.
static cl_mem_flags all_flags[16] = {
  0,
  CL_MEM_READ_WRITE,
  CL_MEM_READ_ONLY,
  CL_MEM_WRITE_ONLY,
  CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR,
  CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR,
  CL_MEM_WRITE_ONLY | CL_MEM_COPY_HOST_PTR,
  CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR,
  CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR,
  CL_MEM_WRITE_ONLY | CL_MEM_ALLOC_HOST_PTR,
  CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR | CL_MEM_COPY_HOST_PTR,
  CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR | CL_MEM_COPY_HOST_PTR,
  CL_MEM_WRITE_ONLY | CL_MEM_ALLOC_HOST_PTR | CL_MEM_COPY_HOST_PTR,
  CL_MEM_READ_WRITE | CL_MEM_USE_HOST_PTR,
  CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR,
  CL_MEM_WRITE_ONLY | CL_MEM_USE_HOST_PTR,
};

#define TEST_DEVICE_PARAM( device, paramName, val, name, type, cast )    \
error = clGetDeviceInfo( device, paramName, sizeof( val ), &val, &size );        \
test_error( error, "Unable to get device " name );                            \
if( size != sizeof( val ) )                \
{                                        \
log_error( "ERROR: Returned size of device " name " does not validate! (expected %d, got %d)\n", (int)sizeof( val ), (int)size );    \
return -1;    \
}                \
log_info( "\tReported device " name " : " type "\n", (cast)val );

#define TEST_DEVICE_PARAM_MEM( device, paramName, val, name, type, div )    \
error = clGetDeviceInfo( device, paramName, sizeof( val ), &val, &size );        \
test_error( error, "Unable to get device " name );                            \
if( size != sizeof( val ) )                \
{                                        \
log_error( "ERROR: Returned size of device " name " does not validate! (expected %d, got %d)\n", (int)sizeof( val ), (int)size );    \
return -1;    \
}                \
log_info( "\tReported device " name " : " type "\n", (int)( val / div ) );

int test_get_device_info(cl_device_id deviceID, cl_context context, cl_command_queue ignoreQueue, int num_elements)
{
    int error;
    size_t size;

    cl_uint vendorID;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_VENDOR_ID, vendorID, "vendor ID", "0x%08x", int )

    char extensions[ 10240 ];
    error = clGetDeviceInfo( deviceID, CL_DEVICE_EXTENSIONS, sizeof( extensions ), &extensions, &size );
    test_error( error, "Unable to get device extensions" );
    if( size != strlen( extensions ) + 1 )
    {
        log_error( "ERROR: Returned size of device extensions does not validate! (expected %d, got %d)\n", (int)( strlen( extensions ) + 1 ), (int)size );
        return -1;
    }
    log_info( "\tReported device extensions: %s \n", extensions );

    cl_uint preferred;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR, preferred, "preferred vector char width", "%d", int )
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT, preferred, "preferred vector short width", "%d", int )
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT, preferred, "preferred vector int width", "%d", int )
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG, preferred, "preferred vector long width", "%d", int )
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT, preferred, "preferred vector float width", "%d", int )
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE, preferred, "preferred vector double width", "%d", int )

    // Note that even if cl_khr_fp64, the preferred width for double can be non-zero.  For example, vendors
    // extensions can support double but may not support cl_khr_fp64, which implies math library support.

    cl_uint baseAddrAlign;
    TEST_DEVICE_PARAM(deviceID, CL_DEVICE_MEM_BASE_ADDR_ALIGN, baseAddrAlign,
                      "base address alignment", "%d bits", int)

    cl_uint maxDataAlign;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE, maxDataAlign, "min data type alignment", "%d bytes", int )

    cl_device_mem_cache_type cacheType;
    error = clGetDeviceInfo( deviceID, CL_DEVICE_GLOBAL_MEM_CACHE_TYPE, sizeof( cacheType ), &cacheType, &size );
    test_error( error, "Unable to get device global mem cache type" );
    if( size != sizeof( cacheType ) )
    {
        log_error( "ERROR: Returned size of device global mem cache type does not validate! (expected %d, got %d)\n", (int)sizeof( cacheType ), (int)size );
        return -1;
    }
    const char *cacheTypeName = ( cacheType == CL_NONE ) ? "CL_NONE" : ( cacheType == CL_READ_ONLY_CACHE ) ? "CL_READ_ONLY_CACHE" : ( cacheType == CL_READ_WRITE_CACHE ) ? "CL_READ_WRITE_CACHE" : "<unknown>";
    log_info( "\tReported device global mem cache type: %s \n", cacheTypeName );

    cl_uint cachelineSize;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE, cachelineSize, "global mem cacheline size", "%d bytes", int )

    cl_ulong cacheSize;
    TEST_DEVICE_PARAM_MEM( deviceID, CL_DEVICE_GLOBAL_MEM_CACHE_SIZE, cacheSize, "global mem cache size", "%d KB", 1024 )

    cl_ulong memSize;
    TEST_DEVICE_PARAM_MEM( deviceID, CL_DEVICE_GLOBAL_MEM_SIZE, memSize, "global mem size", "%d MB", ( 1024 * 1024 ) )

    cl_device_local_mem_type localMemType;
    error = clGetDeviceInfo( deviceID, CL_DEVICE_LOCAL_MEM_TYPE, sizeof( localMemType ), &localMemType, &size );
    test_error( error, "Unable to get device local mem type" );
    if( size != sizeof( cacheType ) )
    {
        log_error( "ERROR: Returned size of device local mem type does not validate! (expected %d, got %d)\n", (int)sizeof( localMemType ), (int)size );
        return -1;
    }
    const char *localMemTypeName = ( localMemType == CL_LOCAL ) ? "CL_LOCAL" : ( cacheType == CL_GLOBAL ) ? "CL_GLOBAL" : "<unknown>";
    log_info( "\tReported device local mem type: %s \n", localMemTypeName );


    cl_bool errSupport;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_ERROR_CORRECTION_SUPPORT, errSupport, "error correction support", "%d", int )

    size_t timerResolution;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_PROFILING_TIMER_RESOLUTION, timerResolution, "profiling timer resolution", "%ld nanoseconds", long )

    cl_bool endian;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_ENDIAN_LITTLE, endian, "little endian flag", "%d", int )

    cl_bool avail;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_AVAILABLE, avail, "available flag", "%d", int )

    cl_bool compilerAvail;
    TEST_DEVICE_PARAM( deviceID, CL_DEVICE_COMPILER_AVAILABLE, compilerAvail, "compiler available flag", "%d", int )

    char profile[ 1024 ];
    error = clGetDeviceInfo( deviceID, CL_DEVICE_PROFILE, sizeof( profile ), &profile, &size );
    test_error( error, "Unable to get device profile" );
    if( size != strlen( profile ) + 1 )
    {
        log_error( "ERROR: Returned size of device profile does not validate! (expected %d, got %d)\n", (int)( strlen( profile ) + 1 ), (int)size );
        return -1;
    }
    if( strcmp( profile, "FULL_PROFILE" ) != 0 && strcmp( profile, "EMBEDDED_PROFILE" ) != 0 )
    {
        log_error( "ERROR: Returned profile of device not FULL or EMBEDDED as required by OpenCL 1.2! (Returned %s)\n", profile );
        return -1;
    }
    log_info( "\tReported device profile: %s \n", profile );


    return 0;
}




static const char *sample_compile_size[2] = {
    "__kernel void sample_test(__global int *src, __global int *dst)\n"
    "{\n"
    "    int  tid = get_global_id(0);\n"
    "     dst[tid] = src[tid];\n"
    "\n"
    "}\n",
    "__kernel __attribute__((reqd_work_group_size(%d,%d,%d))) void sample_test(__global int *src, __global int *dst)\n"
    "{\n"
    "    int  tid = get_global_id(0);\n"
    "     dst[tid] = src[tid];\n"
    "\n"
    "}\n" };

int test_kernel_required_group_size(cl_device_id deviceID, cl_context context, cl_command_queue queue, int num_elements)
{
    int error;
    size_t realSize;
    size_t kernel_max_workgroup_size;
    size_t global[] = {64,14,10};
    size_t local[] = {0,0,0};

    cl_uint max_dimensions;

    error = clGetDeviceInfo(deviceID, CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS, sizeof(max_dimensions), &max_dimensions, NULL);
    test_error(error,  "clGetDeviceInfo failed for CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS");
    log_info("Device reported CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS = %d.\n", (int)max_dimensions);

    {
        clProgramWrapper program;
        clKernelWrapper kernel;

        error = create_single_kernel_helper( context, &program, &kernel, 1, &sample_compile_size[ 0 ], "sample_test" );
        if( error != 0 )
            return error;

        error = clGetKernelWorkGroupInfo(kernel, deviceID, CL_KERNEL_WORK_GROUP_SIZE, sizeof(kernel_max_workgroup_size), &kernel_max_workgroup_size, NULL);
        test_error( error, "clGetKernelWorkGroupInfo failed for CL_KERNEL_WORK_GROUP_SIZE");
        log_info("The CL_KERNEL_WORK_GROUP_SIZE for the kernel is %d.\n", (int)kernel_max_workgroup_size);

        size_t size[ 3 ];
        error = clGetKernelWorkGroupInfo( kernel, deviceID, CL_KERNEL_COMPILE_WORK_GROUP_SIZE, sizeof( size ), size, &realSize );
        test_error( error, "Unable to get work group info" );

        if( size[ 0 ] != 0 || size[ 1 ] != 0 || size[ 2 ] != 0 )
        {
            log_error( "ERROR: Nonzero compile work group size returned for nonspecified size! (returned %d,%d,%d)\n", (int)size[0], (int)size[1], (int)size[2] );
            return -1;
        }

        if( realSize != sizeof( size ) )
        {
            log_error( "ERROR: Returned size of compile work group size not valid! (Expected %d, got %d)\n", (int)sizeof( size ), (int)realSize );
            return -1;
        }

        // Determine some local dimensions to use for the test.
        if (max_dimensions == 1) {
            error = get_max_common_work_group_size(context, kernel, global[0], &local[0]);
            test_error( error, "get_max_common_work_group_size failed");
            log_info("For global dimension %d, kernel will require local dimension %d.\n", (int)global[0], (int)local[0]);
        } else if (max_dimensions == 2) {
            error = get_max_common_2D_work_group_size(context, kernel, global, local);
            test_error( error, "get_max_common_2D_work_group_size failed");
            log_info("For global dimension %d x %d, kernel will require local dimension %d x %d.\n", (int)global[0], (int)global[1], (int)local[0], (int)local[1]);
        } else {
            error = get_max_common_3D_work_group_size(context, kernel, global, local);
            test_error( error, "get_max_common_3D_work_group_size failed");
            log_info("For global dimension %d x %d x %d, kernel will require local dimension %d x %d x %d.\n",
                     (int)global[0], (int)global[1], (int)global[2], (int)local[0], (int)local[1], (int)local[2]);
        }
    }


    {
        clProgramWrapper program;
        clKernelWrapper kernel;
        clMemWrapper in, out;
        //char source[1024];
        char *source = (char*)malloc(1024);
        source[0] = '\0';

        sprintf(source, sample_compile_size[1], local[0], local[1], local[2]);

        error = create_single_kernel_helper( context, &program, &kernel, 1, (const char**)&source, "sample_test" );
        if( error != 0 )
            return error;

        size_t size[ 3 ];
        error = clGetKernelWorkGroupInfo( kernel, deviceID, CL_KERNEL_COMPILE_WORK_GROUP_SIZE, sizeof( size ), size, &realSize );
        test_error( error, "Unable to get work group info" );

        if( size[ 0 ] != local[0] || size[ 1 ] != local[1] || size[ 2 ] != local[2] )
        {
            log_error( "ERROR: Incorrect compile work group size returned for specified size! (returned %d,%d,%d, expected %d,%d,%d)\n",
                      (int)size[0], (int)size[1], (int)size[2], (int)local[0], (int)local[1], (int)local[2]);
            return -1;
        }

        // Verify that the kernel will only execute with that size.
        in = clCreateBuffer(context, CL_MEM_READ_ONLY, sizeof(cl_int)*global[0], NULL, &error);
        test_error(error, "clCreateBuffer failed");
        out = clCreateBuffer(context, CL_MEM_WRITE_ONLY, sizeof(cl_int)*global[0], NULL, &error);
        test_error(error, "clCreateBuffer failed");

        error = clSetKernelArg(kernel, 0, sizeof(in), &in);
        test_error(error, "clSetKernelArg failed");
        error = clSetKernelArg(kernel, 1, sizeof(out), &out);
        test_error(error, "clSetKernelArg failed");

        error = clEnqueueNDRangeKernel(queue, kernel, 3, NULL, global, local, 0, NULL, NULL);
        test_error(error, "clEnqueueNDRangeKernel failed");

        error = clFinish(queue);
        test_error(error, "clFinish failed");

        log_info("kernel_required_group_size may report spurious ERRORS in the conformance log.\n");

        local[0]++;
        error = clEnqueueNDRangeKernel(queue, kernel, 3, NULL, global, local, 0, NULL, NULL);
        if (error != CL_INVALID_WORK_GROUP_SIZE) {
            log_error("Incorrect error returned for executing a kernel with the wrong required local work group size. (used %d,%d,%d, required %d,%d,%d)\n",
                      (int)local[0], (int)local[1], (int)local[2], (int)local[0]-1, (int)local[1], (int)local[2] );
            print_error(error, "Expected: CL_INVALID_WORK_GROUP_SIZE.");
            return -1;
        }

        error = clFinish(queue);
        test_error(error, "clFinish failed");

        if (max_dimensions == 1) {
            free(source);
            return 0;
        }

        local[0]--; local[1]++;
        error = clEnqueueNDRangeKernel(queue, kernel, 3, NULL, global, local, 0, NULL, NULL);
        if (error != CL_INVALID_WORK_GROUP_SIZE) {
            log_error("Incorrect error returned for executing a kernel with the wrong required local work group size. (used %d,%d,%d, required %d,%d,%d)\n",
                      (int)local[0], (int)local[1], (int)local[2], (int)local[0]-1, (int)local[1], (int)local[2]);
            print_error(error, "Expected: CL_INVALID_WORK_GROUP_SIZE.");
            return -1;
        }

        error = clFinish(queue);
        test_error(error, "clFinish failed");

        if (max_dimensions == 2) {
            return 0;
            free(source);
        }

        local[1]--; local[2]++;
        error = clEnqueueNDRangeKernel(queue, kernel, 3, NULL, global, local, 0, NULL, NULL);
        if (error != CL_INVALID_WORK_GROUP_SIZE) {
            log_error("Incorrect error returned for executing a kernel with the wrong required local work group size. (used %d,%d,%d, required %d,%d,%d)\n",
                      (int)local[0], (int)local[1], (int)local[2], (int)local[0]-1, (int)local[1], (int)local[2]);
            print_error(error, "Expected: CL_INVALID_WORK_GROUP_SIZE.");
            return -1;
        }

        error = clFinish(queue);
        test_error(error, "clFinish failed");
        free(source);
    }

    return 0;
}