I found in wiki [link](https://en.wikipedia.org/wiki/Row-_and_column-major_order), that by definition, a row-major tensor should have decreased strides.
So, `A` or `B` here can either be row-major or column-major, that's why we need `IsInPlaceTransposed `. (Although in tvm, tensors are most commonly stored in row-major.) Finally I understand that my confusion actually comes from the necessity of the arguments `transa` and `transb` in [./python/tvm/contrib/cblas.py](https://github.com/apache/incubator-tvm/blob/master/python/tvm/contrib/cblas.py). Since `A` is `DLTensor*`, I think `transa` can be determined by A->strides: 1. if A->strides[0] > A->strides[1], `A` is inferred to be row major, transa=False. 2. otherwise, `A` is inferred to be column major, transa=True. So as to `transb`. PS. But In c interface of the `Cblas` package as follows: ``` void cblas_sgemm(const CBLAS_LAYOUT Layout, const CBLAS_TRANSPOSE TransA, const CBLAS_TRANSPOSE TransB, const MKL_INT M, const MKL_INT N, const MKL_INT K, const float alpha, const float *A, const MKL_INT lda, const float *B, const MKL_INT ldb, const float beta, float *C, const MKL_INT ldc) NOTHROW; ``` we need `TransA` and `TransB` here because `A` and `B` here are just pointers instead of `DLTensor*`, there is no clue whether `A` is column-major or row-major. --- [Visit Topic](https://discuss.tvm.apache.org/t/is-increased-strided-dltensor-stored-in-column-major/7995/2) to respond. You are receiving this because you enabled mailing list mode. To unsubscribe from these emails, [click here](https://discuss.tvm.apache.org/email/unsubscribe/f92943df02fe3e28dc772106fb44b21f3b379675875ff3aea763c29da6fb8edd).
