asmushetzel commented on issue #10964: linalg_potri() Error: linalg_impl.h:606: Check failed: ret == 0 (3 vs. 0) spotri failed in lapack on cpu. URL: https://github.com/apache/incubator-mxnet/issues/10964#issuecomment-389622020 potri computes the inverse based on the Cholesky decomposition (see documentation of potri). So the input must be a positive definite matrix say "A". L = potrf(A) then does the Cholesky decomposition where A = L*L^T. potri(L) will compute the inverse of A. You have to ensure that the initial matrix A is indeed positive definite when feeding it into potrf().
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