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Re^4: Firefly-8.0.1 is not using all the cores of processor...

Siddheshwar Chopra
sidhusai@gmail.com


Dear Sir,
I am using verison 8.0.1. and was trying to run using mpirun -np 2, when error occured. So you want me try running it with openmpi?

Regards,

On Thu Feb 20 '14 7:38pm, Alex Granovsky wrote
----------------------------------------------
>Dear Siddheshwar,

>what was the version of Firefly you was trying to run?
>It seems to me it was linked with plain MPICH1, was it?
>If you have openmpi, mpich2 and mpich-3.0.4 (i.e., mpich3)
>you need to use version of Firefly linked with opmempi
>or mpich2 correspondingly (at moment, mpich3 is not
>supported). Alternatively you can use MPICH1 linked version
>but you need to run it using procgrp file rather than mpirun.

>Kind regards,
>Alex Granovsky
>
>
>On Thu Feb 20 '14 11:00am, Siddheshwar Chopra wrote
>---------------------------------------------------
>>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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