? ? ? ? 刚换了台笔记本电脑 ，在用TensorFlow-gpu训练模型时，一直报错，踩了大坑，特在此写下我的解决方法。因我在解决gpu运行不了时尝试过更换cuda版本，更换cudnn版本，更换tensorflow-gpu与keras版本，故报的错误也是乱七八糟。
报的错误一：
2021-08-09 21:04:53.637764: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully opened dynamic library cublas64_100.dll
2021-08-09 21:04:58.598447: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully opened dynamic library cudnn64_7.dll
2021-08-09 21:17:47.603456: W tensorflow/stream_executor/cuda/redzone_allocator.cc:312] Internal: Invoking ptxas not supported on Windows
Relying on driver to perform ptx compilation. This message will be only logged once.
2021-08-09 21:17:47.675868: E tensorflow/stream_executor/cuda/cuda_blas.cc:428] failed to run cuBLAS routine: CUBLAS_STATUS_EXECUTION_FAILED
2021-08-09 21:17:47.676730: I tensorflow/stream_executor/stream.cc:4963] [stream=000001774007A1F0,impl=00000177393F7250] did not memzero GPU location; source: 000000726209DF28
2021-08-09 21:17:47.676867: I tensorflow/stream_executor/stream.cc:316] did not allocate timer: 000000726209DED0
2021-08-09 21:17:47.676954: I tensorflow/stream_executor/stream.cc:1964] [stream=000001774007A1F0,impl=00000177393F7250] did not enqueue 'start timer': 000000726209DED0
2021-08-09 21:17:47.677084: I tensorflow/stream_executor/stream.cc:1976] [stream=000001774007A1F0,impl=00000177393F7250] did not enqueue 'stop timer': 000000726209DED0
2021-08-09 21:17:47.677201: F tensorflow/stream_executor/gpu/gpu_timer.cc:65] Check failed: start_event_ != nullptr && stop_event_ != nullptr?
错误二：
错误三：?tensorflow.python.framework.errors_impl.UnknownError:??Failed?to?get?convolution?algorithm.?This?is?probably?because?cuDNN?failed?to?initialize,?so?try?looking?to?see?if?a?warning?log?message?was?printed?above.??
错误四：
CuDNN?library:?7.4.1?but?source?was?compiled?with:?7.6.0.??CuDNN?library?major?and?minor?version?needs?to?match?or?have?higher?minor?version?in?case?of?CuDNN?7.0?or?later?version.?If?using?a?binary?install,?upgrade?your?CuDNN?library.??If?building?from?sources,?make?sure?the?library?loaded?at?runtime?is?compatible?with?the?version?specified?during?compile?configuration
其实这些错误都是因为一个问题造成的：我的电脑显卡是3050ti的，属于30系，只能安装cuda11版本以上 的，故我重新安装了cuda11.3.1版本和对应的cudnn8.2.0版本（cudnn8.2.1则报错，我也很懵逼）
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