Problems have been found in an LAPACK internal function in Intel MKL 11.0 update 3 (available in Intel® Composer XE 2013 update 3) which can cause many other LAPACK functions to crash or provide incorrect results. The problem is related to an operation that divides work among threads for a certain class of LAPACK functions that are bandwidth limited, but can still benefit from some parallelism. The problem occurs when a thread count greater than 4 and not divisible by 4 is chosen. For a list of all affected functions, please refer to our knowledgebase article on this topic.
Workaround: explicitly set the number of threads to 1,2,3, or 4n (where n is an integer greater than 1)