当我开始cuda调试时，Nsight会返回此错误：
在当前不可调试的GPU上创建了CUDA上下文。 断点将被禁用。
适配器：GeForce GT 720M
这是我的系统和CUDA信息。
请注意，已安装最新版本的CUDA和Nsight。
我搜索了这个问题但找不到答案。 非常感谢你。
Report Information UnixTime Generated 1490538033 OS Information Computer Name DESKTOP-OLFM6NT NetBIOS Name DESKTOP-OLFM6NT OS Name Windows 10 Pro GetVersionEx dwMajorVersion 10 dwMinorVersion 0 dwBuildNumber 14393 dwPlatformId 2 wServicePackMajor 0 wServicePackMinor 0 wSuiteMask 256 wProductType Workstation GetProductInfo 48 GetNativeSystemInfo wProcessorArchitecture x64 dwPageSize 4096 lpMinimumApplicationAddress 65536 lpMaximumApplicationAddress 140737488289791 dwActiveProcessorMask 15 dwNumberOfProcessors 4 dwAllocationGranularity 65536 wProcessorLevel 6 wProcessorRevision 17665 EnumDisplayDevices Display Device DeviceName \\.\DISPLAY1 DeviceString Intel(R) HD Graphics Family StateFlags 5 DeviceID PCI\VEN_8086&DEV_0A16&SUBSYS_397817AA&REV_09 DeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{A9611CC2-95E1-4DAE-9937-60210AFEDCE0}\0000 Monitor DeviceName \\.\DISPLAY1\Monitor0 DeviceString Generic PnP Monitor StateFlags 3 DeviceID MONITOR\CMN15B6\{4d36e96e-e325-11ce-bfc1-08002be10318}\0003 DeviceKey \Registry\Machine\System\CurrentControlSet\Control\Class\{4d36e96e-e325-11ce-bfc1-08002be10318}\0003 Display Device DeviceName \\.\DISPLAY2 DeviceString Intel(R) HD Graphics Family StateFlags 1 DeviceID PCI\VEN_8086&DEV_0A16&SUBSYS_397817AA&REV_09 DeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{A9611CC2-95E1-4DAE-9937-60210AFEDCE0}\0001 Monitor DeviceName \\.\DISPLAY2\Monitor0 DeviceString Generic PnP Monitor StateFlags 3 DeviceID MONITOR\SAM04FD\{4d36e96e-e325-11ce-bfc1-08002be10318}\0004 DeviceKey \Registry\Machine\System\CurrentControlSet\Control\Class\{4d36e96e-e325-11ce-bfc1-08002be10318}\0004 Display Device DeviceName \\.\DISPLAY3 DeviceString Intel(R) HD Graphics Family StateFlags 0 DeviceID PCI\VEN_8086&DEV_0A16&SUBSYS_397817AA&REV_09 DeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{A9611CC2-95E1-4DAE-9937-60210AFEDCE0}\0002 GlobalMemoryStatusEx dwMemoryLoad 34 ullTotalPhys 8486227968 ullAvailPhys 5588660224 ullTotalPageFile 13854937088 ullAvailPageFile 10756182016 ullTotalVirtual 140737488224256 ullAvailVirtual 140737442308096 Processor Information 0 Name Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz Clock speed (MHz) 2394 1 Name Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz Clock speed (MHz) 2394 2 Name Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz Clock speed (MHz) 2394 3 Name Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz Clock speed (MHz) 2394 NvAPI IsMSHybridGraphics True DisplayDriverVersion Driver Version 37609 Changelist 0 BuildBranchString r376_06 Default AdapterString GeForce GT 720M DisplayDriverCompileType Release NvDebugApi WDDM Devices GPU Name GeForce GT 720M Architecture Fermi Architecture Number 208 Architecture Implementation 7 Architecture Revision 162 Number of GPCs 1 Number of TPCs 2 Number of SMs 2 Warps per SM 48 Lanes per warp 32 Register file size 32768 Max CTAs per SM 8 Max size of shared memory per CTA (bytes) 49152 SM Revision 131073 Number of FB PAs 6 Number of LTs per LTC 2 RmGpuId 1024 RM Devices CUDA CUDA Device Name GeForce GT 720M Driver WDDM DeviceIndex 0 GPU Family GF117 RmGpuId 1024 Compute Major 2 Compute Minor 1 MAX_THREADS_PER_BLOCK 1024 MAX_BLOCK_DIM_X 1024 MAX_BLOCK_DIM_Y 1024 MAX_BLOCK_DIM_Z 64 MAX_GRID_DIM_X 65535 MAX_GRID_DIM_Y 65535 MAX_GRID_DIM_Z 65535 MAX_SHARED_MEMORY_PER_BLOCK 49152 TOTAL_CONSTANT_MEMORY 65536 WARP_SIZE 32 MAX_PITCH 2147483647 MAX_REGISTERS_PER_BLOCK 32768 CLOCK_RATE 1550000 TEXTURE_ALIGNMENT 512 GPU_OVERLAP 1 MULTIPROCESSOR_COUNT 2 KERNEL_EXEC_TIMEOUT 0 INTEGRATED 0 CAN_MAP_HOST_MEMORY 1 COMPUTE_MODE 0 MAXIMUM_TEXTURE1D_WIDTH 65536 MAXIMUM_TEXTURE2D_WIDTH 65536 MAXIMUM_TEXTURE2D_HEIGHT 65535 MAXIMUM_TEXTURE3D_WIDTH 2048 MAXIMUM_TEXTURE3D_HEIGHT 2048 MAXIMUM_TEXTURE3D_DEPTH 2048 MAXIMUM_TEXTURE2D_LAYERED_WIDTH 16384 MAXIMUM_TEXTURE2D_LAYERED_HEIGHT 16384 MAXIMUM_TEXTURE2D_LAYERED_LAYERS 2048 SURFACE_ALIGNMENT 512 CONCURRENT_KERNELS 1 ECC_ENABLED 0 PCI_BUS_ID 4 PCI_DEVICE_ID 0 TCC_DRIVER 0 MEMORY_CLOCK_RATE 900000 GLOBAL_MEMORY_BUS_WIDTH 64 L2_CACHE_SIZE 131072 MAX_THREADS_PER_MULTIPROCESSOR 1536 ASYNC_ENGINE_COUNT 1 UNIFIED_ADDRESSING 1 MAXIMUM_TEXTURE1D_LAYERED_WIDTH 16384 MAXIMUM_TEXTURE1D_LAYERED_LAYERS 2048 CAN_TEX2D_GATHER 1 MAXIMUM_TEXTURE2D_GATHER_WIDTH 16384 MAXIMUM_TEXTURE2D_GATHER_HEIGHT 16384 MAXIMUM_TEXTURE3D_WIDTH_ALTERNATE 0 MAXIMUM_TEXTURE3D_HEIGHT_ALTERNATE 0 MAXIMUM_TEXTURE3D_DEPTH_ALTERNATE 0 PCI_DOMAIN_ID 0 TEXTURE_PITCH_ALIGNMENT 32 MAXIMUM_TEXTURECUBEMAP_WIDTH 16384 MAXIMUM_TEXTURECUBEMAP_LAYERED_WIDTH 16384 MAXIMUM_TEXTURECUBEMAP_LAYERED_LAYERS 2046 MAXIMUM_SURFACE1D_WIDTH 65536 MAXIMUM_SURFACE2D_WIDTH 65536 MAXIMUM_SURFACE2D_HEIGHT 32768 MAXIMUM_SURFACE3D_WIDTH 65536 MAXIMUM_SURFACE3D_HEIGHT 32768 MAXIMUM_SURFACE3D_DEPTH 2048 MAXIMUM_SURFACE1D_LAYERED_WIDTH 65536 MAXIMUM_SURFACE1D_LAYERED_LAYERS 2048 MAXIMUM_SURFACE2D_LAYERED_WIDTH 65536 MAXIMUM_SURFACE2D_LAYERED_HEIGHT 32768 MAXIMUM_SURFACE2D_LAYERED_LAYERS 2048 MAXIMUM_SURFACECUBEMAP_WIDTH 32768 MAXIMUM_SURFACECUBEMAP_LAYERED_WIDTH 32768 MAXIMUM_SURFACECUBEMAP_LAYERED_LAYERS 2046 MAXIMUM_TEXTURE1D_LINEAR_WIDTH 134217728 MAXIMUM_TEXTURE2D_LINEAR_WIDTH 65000 MAXIMUM_TEXTURE2D_LINEAR_HEIGHT 65000 MAXIMUM_TEXTURE2D_LINEAR_PITCH 1048544 MAXIMUM_TEXTURE2D_MIPMAPPED_WIDTH 16384 MAXIMUM_TEXTURE2D_MIPMAPPED_HEIGHT 16384 MAXIMUM_TEXTURE1D_MIPMAPPED_WIDTH 16384 STREAM_PRIORITIES_SUPPORTED 0 GLOBAL_L1_CACHE_SUPPORTED 1 LOCAL_L1_CACHE_SUPPORTED 1 MAX_SHARED_MEMORY_PER_MULTIPROCESSOR 49152 MAX_REGISTERS_PER_MULTIPROCESSOR 32768 MANAGED_MEMORY 0 MULTI_GPU_BOARD 0 MULTI_GPU_BOARD_GROUP_ID 0 HOST_NATIVE_ATOMIC_SUPPORTED 0 SINGLE_TO_DOUBLE_PRECISION_PERF_RATIO 12 PAGEABLE_MEMORY_ACCESS 0 CONCURRENT_MANAGED_ACCESS 0 COMPUTE_PREEMPTION_SUPPORTED 0 CAN_USE_HOST_POINTER_FOR_REGISTERED_MEM 0 DISPLAY_NAME GeForce GT 720M COMPUTE_CAPABILITY_MAJOR 2 COMPUTE_CAPABILITY_MINOR 1 TOTAL_MEMORY 2147483648 RAM_TYPE 7 RAM_LOCATION 1 GPU_PCI_DEVICE_ID 289411294 GPU_PCI_SUB_SYSTEM_ID 939530154 GPU_PCI_REVISION_ID 161 GPU_PCI_EXT_DEVICE_ID 4416 GPU_PCI_EXT_GEN 1 GPU_PCI_EXT_GPU_GEN 1 GPU_PCI_EXT_GPU_LINK_RATE 5000 GPU_PCI_EXT_GPU_LINK_WIDTH 8 GPU_PCI_EXT_DOWNSTREAM_LINK_RATE 5000 GPU_PCI_EXT_DOWNSTREAM_LINK_WIDTH 4
答案 0 :(得分：4)
您的GT 720m是计算能力2.1设备（请参阅here）。
尝试在同样支持（托管）显示器的GPU上调试CUDA代码（例如设置断点）需要3.5或更高版本的计算能力，以支持抢占。
您的设备不符合此要求，因为您的GPU托管您的笔记本电脑显示器，它不能用于在CUDA代码中设置断点。
另请注意，最新版本的Nsight VSE（此时为5.2）对于费米GPU有officially dropped support（您的是费米GPU）：
注意：Nsight™Visual Studio Edition 5.2或更高版本不再支持Fermi系列GPU和较旧系列。
答案 1 :(得分：0)
也许可以尝试使用较早版本的Nsight。
我最近遇到了这个问题，安装了旧版本会有所帮助。