[Pw_forum] (no subject)

[Halima Zaari]

Dear Espresso users
I have performed a phonon calculation of an oxides on 4*4*2 q grid.
 I am using pw.x , ph.x; q2r.x, matdyn.x and lambda.x  to calculate the
 phonon-electron coupling
i obtained  the positive frequencies, but i get the following message
during the lambda.x commnde
forrtl: No such file or directory
forrtl : severe (29): file not found, unit 4,
file/home/halima/MgB2/.../fort.4
lambda.x 00000000000000049      Unknown



libc.so.6                  unknown
any suggestions to solve this problem
cordially
i can't explain why i get negatives frequencies
Kindly suggest me the possible ways where I can solve this.
cordially

-- 
H.ZAARI
PhD Student in laboratory of magnetism and physics of high energy
Faculty of Sciences in Rabat - Morocco
Email:
* halimazaari at gmail.com <boujnah.mourad at gmail.com>*
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