[QE-users] ERROR(FoX), Cannot open file

[Ben Comer]

Pietro,

I am running quantum espresso with 56 cores across 2 nodes (28 cores per 
node) when I receive this error. The error does not appear when I am 
running on a single node (I've tested 1,2,4,8,16, and 28 cores on a 
single node.) However, all runs that involve more than one node do have 
this issue. Previous messages implied that this was because the nodes 
did not share a common file system, which is the case for our cluster. 
Each node has it's own /tmp directory located on each node. Please let 
me know if I can provide more information.

On 11/4/19 11:08 AM, Pietro Davide Delugas wrote:
> Dear Ben Comer.
> The flag is not valid any more. In fact It was not a fix just a 
> configure option to select the old file format rather than the new one.
>
> The old format is no longer supported, that is why the option is not 
> recognized by the configure anymore.
>
> Cannot  open file means that the program is not finding some file. 
> Could you give more details on how you are running the code in order 
> to understand why the error issues?
>
> best regards - Pietro
>
>
>
> On 11/4/19 4:56 PM, Ben Comer wrote:
>> Hello,
>>
>> Since I've switched from espresso 5 to espresso 6.4.1 I've gotten the
>> "ERROR(FoX) Cannot open file" error when running across nodes. I see in
>> the mailing list that the prescribed fix for this is to recompile with
>> the "--enable-xml=no" flag in the "./configure" step. However, when I do
>> this I get a warning saying that the flag was not recognized and I
>> continue to get the error after compilation. Is there any new fix for
>> this issue?
>>
>> Thanks,
>>
>> Ben Comer
>> Georgia Tech
>>
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>
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