Icc is a picky compiler. Usually we use the following flags,-
I am not sure this will help much anyway...
Which BLAS library are you using? MKL?
and which LAPACK (c version)? CLAPACK 3.2.1?
I will try to reproduce your problem .
Regarding the error code, if INFO =-4, he is complaining about the
SUBROUTINE DGESVD( JOBU, JOBVT, M, N, A, LDA, S, U, LDU, VT,
$ WORK, LWORK, INFO )
In the code, we are just making sure N is greater than 0.
Maybe you put L in place of N, no?.
ELSE IF( N.LT.0 ) THEN
INFO = -4
On Jul 8, 2009, at 11:45 AM, Eric Loomis wrote:
Hello, I ran into a problem building the LAPACK (c version) on a
high performance computing platform using an icc compiler. The
libraries seemed to build okay, but when I ran the testing
executables I ran into some errors in the SVD routine. I have
attached the output file with the errors. Do you know what may have
caused these errors?
I have probably a related problem when I try to run some of my code
using the DGESVD routine in that I get an error
** On entry to DGESVD, parameter number 4 had an illegal value
INFO = -4
LWORK = -1
Can you help me with any of these issues?
At 10:21 AM -0700 6/25/09, Zhaojun Bai wrote:
I would be happy to try to help out here. Can you let me
the exact formulation of the constrained LS
problem you want to solver? I can take a look and
see whether we're on the right-track to use the DGGSVD
Apologize the delay for response. We just finished the spring
Eric Loomis wrote:
I am using the routine DGGSVD (CLAPACK) to solve constrained least
squares problems. To do this I need to form a matrix X from Q and
R as discussed in GSVD literature. R appears to be nearly
diagonal. The result of using the GSVD to solve a system of
equations is that the first half of the solution is nearly zero,
but the second half gives the correct answer. Can you put me in
contact with someone familiar with this routine to work out this
issue? I can supply the source code if required.
P-24 plasma physics
Los Alamos National Laboratory
Lapack mailing list
Julie Langou; Research Associate in Computer Science
Innovative Computing Laboratory;
University of Tennessee from Denver, Colorado ;-)
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