# deviceQuery finds on CUDA enabled device on Mac Pro **URL:** \ **Category:** CUDA Programming and Performance\ **Created:** [December 22, 2009, 4:46am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945 "2009-12-22T04:46:50Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![saleem1000](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@saleem1000](https://forums.developer.nvidia.com/u/saleem1000)\ **Post date:** [December 22, 2009, 4:46am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945/1 "2009-12-22T04:46:50Z")
CUDA Device Query (Runtime API) version (CUDART static linking) There is no device supporting CUDA. Device 0: “Device Emulation (CPU)” CUDA Driver Version: 2.30 CUDA Runtime Version: 2.30 CUDA Capability Major revision number: 9999 CUDA Capability Minor revision number: 9999 Total amount of global memory: 4294967295 bytes Number of multiprocessors: 16 Number of cores: 128 Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 16384 bytes Total number of registers available per block: 8192 Warp size: 1 Maximum number of threads per block: 512 Maximum sizes of each dimension of a block: 512 x 512 x 64 Maximum sizes of each dimension of a grid: 65535 x 65535 x 1 Maximum memory pitch: 262144 bytes Texture alignment: 256 bytes Clock rate: 1.35 GHz Concurrent copy and execution: No Run time limit on kernels: No Integrated: Yes Support host page-locked memory mapping: Yes Compute mode: Default (multiple host threads can use this device simultaneously) Test PASSED Press ENTER to exit… * * * kextstat | grep CUDA 126 0 0x1850000 0x2000 0x1000 com.nvidia.CUDA (1.1.0) \<4 1\> * * * NVIDIA GeForce 9400M: Chipset Model: NVIDIA GeForce 9400M Type: GPU Bus: PCI VRAM (Total): 256 MB Vendor: NVIDIA (0x10de) Device ID: 0x0863 Revision ID: 0x00b1 ROM Revision: 3448 Displays: Color LCD: Resolution: 1440 x 900 Pixel Depth: 32-Bit Color (ARGB8888) Main Display: Yes Mirror: Off Online: Yes Built-In: Yes Display Connector: Status: No Display Connected ---
**Author:** ![natael](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@natael](https://forums.developer.nvidia.com/u/natael)\ **Post date:** [February 6, 2010, 1:12am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945/2 "2010-02-06T01:12:27Z")
Were you using some remote connection, like VNC, RDP ?.. Did you get the problem fixed since this post ? how ? I have the same problem and i suspect it’s because I’m connecting through different layers of VNC… VNC + ssh tunnel to machine 1 \> VNC to machine 2 ---
**Author:** ![parallelis](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/parallelis/32/12063_2.png) [@parallelis](https://forums.developer.nvidia.com/u/parallelis)\ **Post date:** [February 9, 2010, 12:32am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945/3 "2010-02-09T00:32:53Z")
> [@](#): > > NVIDIA GeForce 9400M: > > Chipset Model: NVIDIA GeForce 9400M > > Type: GPU > > Bus: PCI > > VRAM (Total): 256 MB > > Vendor: NVIDIA (0x10de) > > Device ID: 0x0863 > > Revision ID: 0x00b1 > > ROM Revision: 3448 > > Displays: > > Color LCD: > > Resolution: 1440 x 900 > > Pixel Depth: 32-Bit Color (ARGB8888) > > Main Display: Yes > > Mirror: Off > > Online: Yes > > Built-In: Yes > > Display Connector: > > Status: No Display Connected No Mac Pro have IGP GeForce9400M MCP79, so you should be testing another computer than the expected Mac Pro. ---
**Author:** ![galvinbutler](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@galvinbutler](https://forums.developer.nvidia.com/u/galvinbutler)\ **Post date:** [February 18, 2010, 3:52am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945/4 "2010-02-18T03:52:20Z")
saleem1000: this might help you (but it didn’t help me) [url=“[The Official NVIDIA Forums | NVIDIA](http://forums.nvidia.com/index.php?showtopic=104198&hl=9400m)”][http://forums.nvidia.com/index.php?showtop...98&hl=9400m[/url]](http://forums.nvidia.com/index.php?showtop...98&hl=9400m%5B/url%5D) I’ve reinstalled drivers after the toolkit install and still have the same problem as saleem. Compilation went fine (after make i386=1) and I’ve done the kextstat | grep CUDA to show the driver is loaded. I’m stumped. ---
**Author:** ![galvinbutler](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@galvinbutler](https://forums.developer.nvidia.com/u/galvinbutler)\ **Post date:** [February 18, 2010, 4:32am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945/5 "2010-02-18T04:32:56Z")
Call off the search. I installed a video driver for Leapord, the 2.3.0a driver, instead of the appropriate Snow Leapord driver: 2.3.1a. Here’s the link if you have Snow Leapord: [url=“[http://developer.download.nvidia.com/compute/cuda/2\_3/drivers/cudadriver\_2.3.1a\_macos.pkg](http://developer.download.nvidia.com/compute/cuda/2_3/drivers/cudadriver_2.3.1a_macos.pkg)”][http://developer.download.nvidia.com/compu....3.1a\_macos.pkg[/url]](http://developer.download.nvidia.com/compu....3.1a_macos.pkg%5B/url%5D) Snow Leapord is OS X version 10.6.\* btw. ---
**Author:** ![mitchde](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@mitchde](https://forums.developer.nvidia.com/u/mitchde)\ **Post date:** [February 22, 2010, 7:44am UTC](https://forums.developer.nvidia.com/t/devicequery-finds-on-cuda-enabled-device-on-mac-pro/13945/6 "2010-02-22T07:44:20Z")
> [@](#): > > Call off the search. I installed a video driver for Leapord, the 2.3.0a driver, instead of the appropriate Snow Leapord driver: 2.3.1a. > > Here’s the link if you have Snow Leapord: > > http://developer.download.nvidia.com/compu…3.1a\_macos.pkg > > Snow Leapord is OS X version 10.6.\* btw. Also remember that Cuda drivers, even newest cant work in 64 Bit Kernel Mode (= no cuda device).