使用nvidia-smi时，GPU利用率为N / A.
我想看看我的显卡的GPU使用情况。 我在Kubuntu 14.04 LTS x64上使用两个Nvidia GTX 690卡。 当我运行nvidia-smi -q我得到：
francky@francky-Aurora-R4:~$ nvidia-smi -q ==============NVSMI LOG============== Timestamp : Sun Nov 22 08:37:22 2015 Driver Version : 352.39 Attached GPUs : 2 GPU 0000:04:00.0 Product Name : GeForce GTX 690 Product Brand : GeForce Display Mode : N/A Display Active : N/A Persistence Mode : Disabled Accounting Mode : N/A Accounting Mode Buffer Size : N/A Driver Model Current : N/A Pending : N/A Serial Number : N/A GPU UUID : GPU-e770f6fe-e8c6-466b-89e1-bc39d2a280bb Minor Number : 0 VBIOS Version : 80.04.4C.00.0E MultiGPU Board : N/A Board ID : N/A Inforom Version Image Version : N/A OEM Object : N/A ECC Object : N/A Power Management Object : N/A GPU Operation Mode Current : N/A Pending : N/A PCI Bus : 0x04 Device : 0x00 Domain : 0x0000 Device Id : 0x118810DE Bus Id : 0000:04:00.0 Sub System Id : 0x095B10DE GPU Link Info PCIe Generation Max : N/A Current : N/A Link Width Max : N/A Current : N/A Bridge Chip Type : N/A Firmware : N/A Replays since reset : 0 Tx Throughput : N/A Rx Throughput : N/A Fan Speed : 43 % Performance State : P0 Clocks Throttle Reasons : N/A FB Memory Usage Total : 2047 MiB Used : 237 MiB Free : 1810 MiB BAR1 Memory Usage Total : N/A Used : N/A Free : N/A Compute Mode : Default Utilization Gpu : N/A Memory : N/A Encoder : N/A Decoder : N/A Ecc Mode Current : N/A Pending : N/A ECC Errors Volatile Single Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Double Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Aggregate Single Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Double Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Retired Pages Single Bit ECC : N/A Double Bit ECC : N/A Pending : N/A Temperature GPU Current Temp : 59 C GPU Shutdown Temp : N/A GPU Slowdown Temp : N/A Power Readings Power Management : N/A Power Draw : N/A Power Limit : N/A Default Power Limit : N/A Enforced Power Limit : N/A Min Power Limit : N/A Max Power Limit : N/A Clocks Graphics : N/A SM : N/A Memory : N/A Applications Clocks Graphics : N/A Memory : N/A Default Applications Clocks Graphics : N/A Memory : N/A Max Clocks Graphics : N/A SM : N/A Memory : N/A Clock Policy Auto Boost : N/A Auto Boost Default : N/A Processes : N/A GPU 0000:05:00.0 Product Name : GeForce GTX 690 Product Brand : GeForce Display Mode : N/A Display Active : N/A Persistence Mode : Disabled Accounting Mode : N/A Accounting Mode Buffer Size : N/A Driver Model Current : N/A Pending : N/A Serial Number : N/A GPU UUID : GPU-7a0d0c06-7285-a503-c130-32de1ce1d24d Minor Number : 1 VBIOS Version : 80.04.4C.00.0F MultiGPU Board : N/A Board ID : N/A Inforom Version Image Version : N/A OEM Object : N/A ECC Object : N/A Power Management Object : N/A GPU Operation Mode Current : N/A Pending : N/A PCI Bus : 0x05 Device : 0x00 Domain : 0x0000 Device Id : 0x118810DE Bus Id : 0000:05:00.0 Sub System Id : 0x095B10DE GPU Link Info PCIe Generation Max : N/A Current : N/A Link Width Max : N/A Current : N/A Bridge Chip Type : N/A Firmware : N/A Replays since reset : 0 Tx Throughput : N/A Rx Throughput : N/A Fan Speed : 30 % Performance State : P8 Clocks Throttle Reasons : N/A FB Memory Usage Total : 2047 MiB Used : 244 MiB Free : 1803 MiB BAR1 Memory Usage Total : N/A Used : N/A Free : N/A Compute Mode : Default Utilization Gpu : N/A Memory : N/A Encoder : N/A Decoder : N/A Ecc Mode Current : N/A Pending : N/A ECC Errors Volatile Single Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Double Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Aggregate Single Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Double Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Retired Pages Single Bit ECC : N/A Double Bit ECC : N/A Pending : N/A Temperature GPU Current Temp : 33 C GPU Shutdown Temp : N/A GPU Slowdown Temp : N/A Power Readings Power Management : N/A Power Draw : N/A Power Limit : N/A Default Power Limit : N/A Enforced Power Limit : N/A Min Power Limit : N/A Max Power Limit : N/A Clocks Graphics : N/A SM : N/A Memory : N/A Applications Clocks Graphics : N/A Memory : N/A Default Applications Clocks Graphics : N/A Memory : N/A Max Clocks Graphics : N/A SM : N/A Memory : N/A Clock Policy Auto Boost : N/A Auto Boost Default : N/A Processes : N/A
为什么GPU利用率不适用，以及如何解决或规避问题？ 我只是想要GPU利用率，而且我很好地使用其他工具。
通常，GPU利用率将显示如下：
nvidia-smi -q ==============NVSMI LOG============== Timestamp : Fri Dec 11 11:40:25 2015 Driver Version : 352.39 Attached GPUs : 3 GPU 0000:01:00.0 Product Name : GeForce GTX TITAN X Product Brand : GeForce Display Mode : Disabled Display Active : Disabled Persistence Mode : Disabled Accounting Mode : Disabled Accounting Mode Buffer Size : 1920 Driver Model Current : N/A Pending : N/A Serial Number : 0420115017035 GPU UUID : GPU-4ef51df0-f0bb-0da5-9418-ef1060190073 Minor Number : 0 VBIOS Version : 84.00.1F.00.90 MultiGPU Board : No Board ID : 0x100 Inforom Version Image Version : G001.0000.01.03 OEM Object : 1.1 ECC Object : N/A Power Management Object : N/A GPU Operation Mode Current : N/A Pending : N/A PCI Bus : 0x01 Device : 0x00 Domain : 0x0000 Device Id : 0x17C210DE Bus Id : 0000:01:00.0 Sub System Id : 0x29923842 GPU Link Info PCIe Generation Max : 3 Current : 3 Link Width Max : 16x Current : 8x Bridge Chip Type : N/A Firmware : N/A Replays since reset : 0 Tx Throughput : 388000 KB/s Rx Throughput : 80000 KB/s Fan Speed : 46 % Performance State : P2 Clocks Throttle Reasons Idle : Not Active Applications Clocks Setting : Not Active SW Power Cap : Not Active HW Slowdown : Not Active Unknown : Active FB Memory Usage Total : 12287 MiB Used : 7490 MiB Free : 4797 MiB BAR1 Memory Usage Total : 256 MiB Used : 4 MiB Free : 252 MiB Compute Mode : Default Utilization Gpu : 71 % Memory : 37 % Encoder : 0 % Decoder : 0 % Ecc Mode Current : N/A Pending : N/A ECC Errors Volatile Single Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Double Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Aggregate Single Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Double Bit Device Memory : N/A Register File : N/A L1 Cache : N/A L2 Cache : N/A Texture Memory : N/A Total : N/A Retired Pages Single Bit ECC : N/A Double Bit ECC : N/A Pending : N/A Temperature GPU Current Temp : 81 C GPU Shutdown Temp : 97 C GPU Slowdown Temp : 92 C Power Readings Power Management : Supported Power Draw : 139.90 W Power Limit : 250.00 W Default Power Limit : 250.00 W Enforced Power Limit : 250.00 W Min Power Limit : 150.00 W Max Power Limit : 275.00 W Clocks Graphics : 1341 MHz SM : 1341 MHz Memory : 3304 MHz Applications Clocks Graphics : 1126 MHz Memory : 3505 MHz Default Applications Clocks Graphics : 1126 MHz Memory : 3505 MHz Max Clocks Graphics : 1518 MHz SM : 1518 MHz Memory : 3505 MHz Clock Policy Auto Boost : On Auto Boost Default : On Processes Process ID : 30463 Type : C Name : /home/francky/torch/install/bin/luajit Used GPU Memory : 7465 MiB
自驱动程序版本270.26以来，Nvidia打破了对geforce卡的分析支持。 目前只有Quadro卡支持gpu使用监控。