queued-like *face.Recognizer

[codenoid]

i use global *face.Recognizer for concurrent use, but i notice a strange issue, which *face.Recognizer likely execute in queued order

the execution time increase by how many concurrent call to *face.Recognizer

[rudved]

C:\Users\Lenovo\go\src>go get github.com/leandroveronezi/go-recognizer

github.com/Kagami/go-face

C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: $WORK\b048_x005.o: in function dlib::blas_bindings::cblas_gemm(dlib::blas_bindings::CBLAS_ORDER, dlib::blas_bindings::CBLAS_TRANSPOSE, dlib::blas_bindings::CBLAS_TRANSPOSE, int, int, int, double, double const*, int, double const*, int, double, double*, int)': C:/msys64/mingw64/include/dlib/matrix/matrix_blas_bindings.h:218: undefined reference to cblas_dgemm'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/msys64/mingw64/include/dlib/matrix/matrix_blas_bindings.h:218: undefined reference to cblas_dgemm' C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/msys64/mingw64/include/dlib/matrix/matrix_blas_bindings.h:218: undefined reference to cblas_dgemm'
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:/msys64/mingw64/include/dlib/matrix/matrix_blas_bindings.h:218: undefined reference to cblas_dgemm' C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: $WORK\b048\_x005.o: in function dlib::blas_bindings::cblas_scal(int, float, float*)':
C:/msys64/mingw64/include/dlib/matrix/matrix_blas_bindings.h:177: undefined reference to `cblas_sscal'
collect2.exe: error: ld returned 1 exit status

Im getting this error plz tell me if you have any solution i have don this in windows. i was trying this since 3 days