cuda后端编译成功,为啥推理时还不能用

[rlczddl]

勾选了MNN_CUDA,MNN_USE_SYSTEM_LIB,取消了MNN_SEP_BUILD,ubuntu18上成功编译,推理时采用cuda后端还是报Can't Find type=2 backend, use 0 instead

[jxt1234]

把 cmakecache.txt 及 build 目录删除再编试下

[rlczddl]

这之后又试了好多次,还是推理时cuda后端不能用,可能是什么原因呢?opencl可以用. 我的环境是ubuntu18 cuda11.1 mnn2.0

[rlczddl]

更新下,MNN2.0和MNN1.2都试了,编译无错误信息,链接到程序里会报 对'MNN::CUDA:xxx'未定义的引用错误,看错误似乎是编译mnn动态库时cuda后端没法成功编进去,但事实上我已经手动指定了相应的cuda头文件和库文件

[bitxsw93]

Please update lastest mnn code, retry again. If having any problem, please let me know.

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