Yambo Community Forum

Dear Daniele,

I runned the same calculation "yambo -o b" with yambo 4.2.4 and it finishes without a problem. But the problem is my installation of 4.2.4 is not parallel and I need parallel yambo. I installed yambo 4.3.1 with parallel successfully and it does the GW calculation without a problem but it returns segmentation error for optics calculation. I suspect something happened in the compilation. Do you have any idea? I compiled yambo 4.3.1. with ./configure FC=ifort F77=ifort

Dear Burak,

I cannot say anything with so few information. If you want, post your confg.log file and I will have a look.
By the way:
1. did you try to reduce your BSE bands.?
2. did you try to do an optic calculation from the tutorial?

Best,
Daniele

I managed to install yambo 4.2.4 with parallel. I runned GW without a problem. However at BSE optics calculation the code stopped at Kernel loop. What could be the problem?

Best,
Burak

Dear Burak,

1. did you try to reduce your BSE bands.?
2. did you try to do an optic calculation from the tutorial?

Daniele

Dear Daniele,

I reduced the BSE bands and it worked now. Thank you! But what happens if I need more BSE bands and the code is stopping? What can I do then?

Best,
Burak

Dear Burak,
usually the needed BSE bands are not many, in any case you can use a parallelization strategy aimed to distributed the memory among progessor.
This is achieved by setting:
PAR_def_mode= "memory"

Best,
Daniele