Check failed: status == CUDNN_STATUS_SUCCESS (6 vs. 0)

caffe make runtest error（core dumped）Check failed: status == CUDNN_STATUS_SUCCESS (6 vs. 0)

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簡單講就是GPU的加速性能不夠，CUDNN只支持CUDA Capability 3.0以上的GPU加速

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在實驗室台式機上(I7+GeForce GTX TITAN Black With CUDA CAPABILITY 3.5)成功配置caffe並測試數據無誤、訓練數據也開始以后，也打算筆記本上(I5+GEFORCE GT540M--With CUDA CAPABILITY 2.1)配上caffe.

於是安裝了cuda和cudnn加速，make和make test都過了，而make runtest時報錯，大概是這樣滴錯誤

 

<pre name="code" class="plain">[----------] 6 tests from CuDNNConvolutionLayerTest/1, where TypeParam = double
[ RUN      ] CuDNNConvolutionLayerTest/1.TestSimpleConvolutionGroupCuDNN
F1014 08:55:30.083176 23568 cudnn_conv_layer.cpp:30] Check failed: status == CUDNN_STATUS_SUCCESS (6 vs. 0)  CUDNN_STATUS_ARCH_MISMATCH
*** Check failure stack trace: ***
    @     0x2b082d0a8daa  (unknown)
    @     0x2b082d0a8ce4  (unknown)
    @     0x2b082d0a86e6  (unknown)
    @     0x2b082d0ab687  (unknown)
    @           0x739689  caffe::CuDNNConvolutionLayer<>::LayerSetUp()
    @           0x42c1f0  caffe::Layer<>::SetUp()
    @           0x49d776  caffe::CuDNNConvolutionLayerTest_TestSimpleConvolutionGroupCuDNN_Test<>::TestBody()
    @           0x68d613  testing::internal::HandleExceptionsInMethodIfSupported<>()
    @           0x6840b7  testing::Test::Run()
    @           0x68415e  testing::TestInfo::Run()
    @           0x684265  testing::TestCase::Run()
    @           0x6875a8  testing::internal::UnitTestImpl::RunAllTests()
    @           0x687837  testing::UnitTest::Run()
    @           0x41e9d0  main
    @     0x2b0831cf1ec5  (unknown)
    @           0x4261c7  (unknown)
    @              (nil)  (unknown)
make: *** [runtest] Aborted (core dumped) caffe::NetTest_TestReshape_Test<>::TestBody()
    @           0x68d613  testing::internal::HandleExceptionsInMethodIfSupported<>()
    @           0x6840b7  testing::Test::Run()
    @           0x68415e  testing::TestInfo::Run()
    @           0x684265  testing::TestCase::Run()
    @           0x6875a8  testing::internal::UnitTestImpl::RunAllTests()
    @           0x687837  testing::UnitTest::Run()
    @           0x41e9d0  main
    @     0x2b2a9f778ec5  (unknown)
    @           0x4261c7  (unknown)
    @              (nil)  (unknown)
make: *** [runtest] Aborted (core dumped)

 

在內網找了半天無果，終於在牆外找到了解決辦法，不，是問題所在。 因為筆記本上的GT540M的CUDA Capability是2.1,而官方的cudnn加速是不支持3.0以下的版本的，因此只能在Makefile.config中注釋掉USE_CUDNN這行，重新執行以下

 

 

make clean
make all -j4
make test -j4
make runtest -j4

最后除了make runtest中2 DISABLED TESTS之外，沒有其他問題。make runtest中出現幾個測試例子不過不影響使用。