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Re^2: Firefly-8.0.1 is not using all the cores of processor...

Siddheshwar Chopra
sidhusai@gmail.com


Dear Sir,
I am already using httfix option in the i/p file. I have openmpi, mpich2 and mpich-3.0.4 installed on my system. Any help would be welcome.

Regards,


On Thu Feb 20 '14 0:13am, Alex Granovsky wrote
----------------------------------------------
>Dear Siddheshwar,

>I'm sorry for the delayed answer.

>First, what is the MPI implementation that is installed onto your
>computer (i.e. the MPI implementation you are using) and  what is
>the MPI implementation the version of Firefly you are using was
>linked with? It seems there can be MPI implementations mismatch
>and this is why I'm asking about this. I.e. you may be trying to
>run mpich-1 version using mpirun of MPICH2 etc...

>Second, Intel's i3 processor has only 2 physical cores.
>The addition two cores are due to hyper-threading. Normally,
>Firefly uses only one process per physical core. This means
>you should run it passing "-np 2" arguments to mpirun.
>If you want to use all four logical cores it is still possible,
>however you need to specify:

>

  
 $smp httfix(1)=.f. $end

>in the input file, then run Firefly using mpirun -np 4

>Kind regards,
>Alex Granovsky
>
>
>
>On Sat Feb 15 '14 10:47am, Siddheshwar Chopra wrote
>---------------------------------------------------
>>Dear Sir,
>>I am running calculations on Linux mint-15, with i3 processor-2.2 GHz, 2GB RAM. I am running Firefly-8.0.1 as follows:
>>mpirun -np 4 firefly801 -i /home/sid/Desktop/Fire/1.inp -o /home/sid/Desktop/Fire/1.log

>>But I get the following error message and the system monitor also shows that ONLY 2 processors are being used.
>>
>>
>>                           Running on host matrix                           Running on host matrix
>>
>>
>> FATAL ERROR INITIALIZING FIREFLY! CHECK YOUR COMMAND LINE OPTIONS!
>>x
>>
>>
>> FATAL ERROR INITIALIZING FIREFLY! CHECK YOUR COMMAND LINE OPTIONS!
>>
>>
>> ON MASTER NODE, ERROR CODE IS : 0x00010004 ON MASTER NODE, ERROR CODE IS : 0x00010004
>>    Unable to create output file
>>    Output file already exists!
>>
>>
>>    Unable to create output file
>>    Output file already exists!

>>                           Running on host matrix
>>
>>
>> FATAL ERROR INITIALIZING FIREFLY! CHECK YOUR COMMAND LINE OPTIONS!

>> ON MASTER NODE, ERROR CODE IS : 0x00010004
>>    Unable to create output file
>>    Output file already exists!

>>Please tell me what has to be done so that Firefly uses 4 processors/threads?
>>
>>
>>Regards,


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