Nvidia OpenCL samples on Nvidia 195 OpenCL drivers!!

Some people at Nvidia forums don't know how to do, just use libraries (.libs) and in cl_platform.h use CL_API_CALL __stdcall (see AMD header).. Also if you want OpenCL OpenGL interop use cl_gl.h from AMD SDK or the current cl_gl.h at Khronos..

See post "Optix and OpenCL SDKs with Visual Studio 2010" for working i 2010!

Of course all samples work with these fixes..

General performance is very good:

gtx 275 pciex 2.0 a 8x

nbody (30000bodies):
===============
ocl nbody 22-23fps (440-460gflops)
cuda nbody: 24-25fps (480-500flps)
dxcompute nbody: 25fps (500 gflops)

with opencl 190.89 20fps
ahora 22-23fps

bandwith performance
===============

very good:

ocl device bandwith (195) 97gbytes/s
cuda 104gbytes/s
ocl  device bandwith (190 driver) 90-95gbytes/s

New drivers support doubles and OpenGL interop.

Enabling OpenGL interop in samples :
=========================

This samples have support:

oclSimpleTexture3D
oclVolumeRender
oclPostprocessGL
oclSimpleGL

1.search commented #define GL_INTEROP and uncomment
2.change (windows only):
  cxGPUContext = clCreateContextFromType(0, CL_DEVICE_TYPE_GPU, NULL, NULL, &ciErrNum);
to:
#ifdef GL_INTEROP
cl_context_properties akProperties[] = {
CL_GL_CONTEXT_KHR,
(cl_context_properties)wglGetCurrentContext(),
CL_WGL_HDC_KHR,
(cl_context_properties)wglGetCurrentDC(), 0
};
   // create the OpenCL context
    cxGPUContext = clCreateContextFromType(akProperties, CL_DEVICE_TYPE_GPU, NULL, NULL, &ciErrNum);
#else
    // create the OpenCL context
    cxGPUContext = clCreateContextFromType(0, CL_DEVICE_TYPE_GPU, NULL, NULL, &ciErrNum);
#endif

oclPostprocessGL fix:

beforce initcl

 if(!bQATest)

    {

        // create pbo

        createPBO(&pbo_source);

        createPBO(&pbo_dest);

}

after:

if(!bQATest)

    {

        // create pbo

       // createPBO(&pbo_source);

OpenGL interop perf:
==============

Seems Texture 3D OpenGL interop is very bad..

on/off
====
vol3d 14 14
post 95 75
sim 385 320/330
tex3d 290 250

Device
=====


OpenCL SW Info:

 CL_PLATFORM_NAME:      NVIDIA CUDA
 CL_PLATFORM_VERSION:   OpenCL 1.0 CUDA 3.0.1
 OpenCL SDK Version:    4788711



OpenCL Device Info:

 1 devices found supporting OpenCL:


 ---------------------------------
 Device GeForce GTX 275
 ---------------------------------
  CL_DEVICE_NAME:                       GeForce GTX 275
  CL_DEVICE_VENDOR:                     NVIDIA Corporation
  CL_DRIVER_VERSION:                    195.39
  CL_DEVICE_TYPE:                       CL_DEVICE_TYPE_GPU
  CL_DEVICE_MAX_COMPUTE_UNITS:          30
  CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS:   3
  CL_DEVICE_MAX_WORK_ITEM_SIZES:        512 / 512 / 64
  CL_DEVICE_MAX_WORK_GROUP_SIZE:        512
  CL_DEVICE_MAX_CLOCK_FREQUENCY:        1404 MHz
  CL_DEVICE_ADDRESS_BITS:               32
  CL_DEVICE_MAX_MEM_ALLOC_SIZE:         224 MByte
  CL_DEVICE_GLOBAL_MEM_SIZE:            896 MByte
  CL_DEVICE_ERROR_CORRECTION_SUPPORT:   no
  CL_DEVICE_LOCAL_MEM_TYPE:             local
  CL_DEVICE_LOCAL_MEM_SIZE:             16 KByte
  CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE:   64 KByte
  CL_DEVICE_QUEUE_PROPERTIES:           CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE
  CL_DEVICE_QUEUE_PROPERTIES:           CL_QUEUE_PROFILING_ENABLE
  CL_DEVICE_IMAGE_SUPPORT:              1
  CL_DEVICE_MAX_READ_IMAGE_ARGS:        128
  CL_DEVICE_MAX_WRITE_IMAGE_ARGS:       8

  CL_DEVICE_IMAGE                 2D_MAX_WIDTH     8192
                                        2D_MAX_HEIGHT    8192
                                        3D_MAX_WIDTH     2048
                                        3D_MAX_HEIGHT    2048
                                        3D_MAX_DEPTH     2048

  CL_DEVICE_EXTENSIONS:      

 cl_khr_fp64

 cl_khr_global_int32_base_atomics

cl_khr_global_int32_extended_atomics

cl_khr_local_int32_base_atomics

cl_khr_local_int32_extended_atomics

 cl_khr_byte_addressable_store
 cl_khr_gl_sharing
 cl_nv_compiler_options
cl_nv_device_attribute_query

  CL_NV_DEVICE_COMPUTE_CAPABILITY:      1.3
  CL_NV_DEVICE_REGISTERS_PER_BLOCK:     16384
  CL_NV_DEVICE_WARP_SIZE:               32
  CL_NV_DEVICE_GPU_OVERLAP:             CL_TRUE
  CL_NV_DEVICE_KERNEL_EXEC_TIMEOUT:     CL_FALSE
  CL_NV_DEVICE_INTEGRATED_MEMORY:       CL_FALSE
  CL_DEVICE_PREFERRED_VECTOR_WIDTH_  CHAR 1, SHORT 1, INT 1, FLOAT 1, DOUBLE