New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

gbmv! prone to NaNs in y #44

Open

dlfivefifty opened this issue Jun 1, 2018 · 0 comments

Contributor

dlfivefifty commented Jun 1, 2018

This behaviour is inconsistent (and prevents use of similar):

alpha = T(2.0)
beta = T(0.0)
hA = rand(T, 4, 32)
hB = rand(T, 32)
m = 33
hC = rand(T, m)
A = CLArray(hA)
B = CLArray(hB)
C = CLArray(hC)
isnan(sum(BLAS.gbmv!('N', m, 1, 2, alpha, A, B, beta, C))) # false
C[1] = NaN
isnan(sum(BLAS.gbmv!('N', m, 1, 2, alpha, A, B, beta, C)) ) # true
hC[1] = NaN
isnan(sum(BLAS.gbmv!('N', m, 1, 2, alpha, hA, hB, beta, hC))) # false

The text was updated successfully, but these errors were encountered:

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment