许多CUDA的例子都失败了

许多CUDA的例子都失败了,cuda,gpgpu,nvidia,Cuda,Gpgpu,Nvidia,安装新的CUDA 4.0驱动程序和SDK后,许多SDK测试失败(例如fastWalshTransform、matrixMul、Reduce)。这是/deviceQuery: Device 0: "GeForce GTX 570" CUDA Driver Version / Runtime Version 4.0 / 4.0 CUDA Capability Major/Minor version number: 2.0 Total amount of globa

安装新的CUDA 4.0驱动程序和SDK后,许多SDK测试失败(例如
fastWalshTransform、matrixMul、Reduce
)。这是
/deviceQuery

Device 0: "GeForce GTX 570"
  CUDA Driver Version / Runtime Version          4.0 / 4.0
  CUDA Capability Major/Minor version number:    2.0
  Total amount of global memory:                 1279 MBytes (1341325312 bytes)
  (15) Multiprocessors x (32) CUDA Cores/MP:     480 CUDA Cores
  GPU Clock Speed:                               1.57 GHz
  Memory Clock rate:                             2100.00 Mhz
  Memory Bus Width:                              320-bit
  L2 Cache Size:                                 655360 bytes
  Max Texture Dimension Size (x,y,z)             1D=(65536), 2D=(65536,65535), 3D=(2048,2048,2048)
  Max Layered Texture Size (dim) x layers        1D=(16384) x 2048, 2D=(16384,16384) x 2048
  Total amount of constant memory:               65536 bytes
  Total amount of shared memory per block:       49152 bytes
  Total number of registers available per block: 32768
  Warp size:                                     32
  Maximum number of threads per block:           1024
  Maximum sizes of each dimension of a block:    1024 x 1024 x 64
  Maximum sizes of each dimension of a grid:     65535 x 65535 x 65535
  Maximum memory pitch:                          2147483647 bytes
  Texture alignment:                             512 bytes
  Concurrent copy and execution:                 Yes with 1 copy engine(s)
  Run time limit on kernels:                     No
  Integrated GPU sharing Host Memory:            No
  Support host page-locked memory mapping:       Yes
  Concurrent kernel execution:                   Yes
  Alignment requirement for Surfaces:            Yes
  Device has ECC support enabled:                No
  Device is using TCC driver mode:               No
  Device supports Unified Addressing (UVA):      Yes
  Device PCI Bus ID / PCI location ID:           4 / 0
例如,
减少的输出是:

  • GPU结果=2135772699
  • CPU结果=213935471
=>
失败


解决方案:这曾经是(现在仍然是)一个硬件问题(驱动程序更新无法解决问题)。可能是一些内存问题,但很常见。我们有几个NVIDIA卡显示了这个问题(甚至特斯拉!)。到目前为止,我们找到的唯一解决方案是重新启动机器或稍微增加电压。

这曾经是(现在仍然是)硬件问题(驱动程序更新无法解决问题)。可能是一些内存问题,但很常见。我们有几个NVIDIA卡显示了这个问题(甚至特斯拉!)。到目前为止,我们找到的唯一解决方案是重新启动机器或稍微增加电压。

你能更详细地描述一下“失败”是什么意思吗?@Martin:是的,例如reduce的输出是:
GPU result=2135772699
CPU result=2139353471
失败了
。你修改了这些示例吗?还是你用的是默认尺寸?@Pavan:它们完全没有动过。只有解包和编译,一切都是默认的。GPU或驱动程序可能有问题。重新检查驱动程序是否兼容。。