MAGMA  1.6.1
Matrix Algebra for GPU and Multicore Architectures
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Errors

Driver and computational routines, and a few BLAS/auxiliary routines, currently return errors both as a return value and in the info argument.

The return value and info should always be identical. In general, the meaning is as given in this table. Predefined error codes are large negative numbers.

Info Description
info = 0 (MAGMA_SUCCESS) Successful exit
info < 0, but small For info = -i, the i-th argument had an illegal value
info > 0 Function-specific error such as singular matrix
MAGMA_ERR_DEVICE_ALLOC Could not allocate GPU device memory
MAGMA_ERR_HOST_ALLOC Could not allocate CPU host memory
MAGMA_ERR_ILLEGAL_VALUE An argument had an illegal value (deprecated; instead it should return -i to say the i-th argument was bad)
MAGMA_ERR_INVALID_PTR Can't free pointer
MAGMA_ERR_NOT_IMPLEMENTED Function or option not implemented
MAGMA_ERR_NOT_SUPPORTED Function or option not supported on the current architecture

magma_xerbla is called to report errors (mostly bad arguments) to user.

magma_strerror returns string description of an error code.