Re: [Mplapack-devel] possibly a bug in Cheev
Status: Pre-Alpha
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nakatamaho
From: Akira S. <aki...@ni...> - 2012-08-09 05:25:43
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Dear Nakata-san, Thanks for your suggestion. Indeed, the matrix in the previous email was a singular matrix. But sometimes Cheev fails to find eigenvalues also for a small non-singular Hermitian matrix. A typical example is 2 0 1 0 2 0 1 0 2 Its eigenvalues are 1, 2, and 3. For this matrix, Cheev stops together with the message "#Rlaev2 Checkpoint 13 Not checked" as is similar to the previous example. I am not sure if this phenomenon is dependent on a system environment. Could somebody test Cheev with the above matrix? Thank you for your attentions. Regards, Akira SaiToh 2012-08-09 10:22 Maho NAKATA wrote: > Akira SaiTohさま > > すいません、遅くなって。 > まだ解決してませんでしょうか。 > > singularじゃなさそうな行列を適当に入れてみたら > 如何でしょうか。 > thanks |