There are two types of bin/ testers: lapack and blas. The BLAS testers
have executable names of the form
The BLAS testers test ATLAS against a known-good implementation, so the first
thing to do is make sure the error is in ATLAS, and not the known-good
implementation. To do this, change your BLASlib back to the default
F77 reference BLAS, and if necessary compile them without optimization.
and then relink and rerun the
test in question. If the error goes away, you have found an error in your
known-good library, not ATLAS. If it stays, you have found an error in
ATLAS, and you should track it down or report it.
See Section 7.5 for information on tracking problems in the