Re: [Gems-users] Why are ocean finish times coming in negative?

["lopamudra chatterjee" <lopamudralopa@xxxxxxxxxxxxxx>]

 Hi,

Thanks a lot for your prompt reply. Could you please tell me what other values of input parameter you are using because even with time step value =25 the program is running for a really long time.

Thanking in advance,
Lopamudra

On Mon, 12 Apr 2010 19:29:44 +0530  wrote
>I was running the Ocean simulation for only 50 time steps.
>
>--
>Nilay
>
>On Mon, 12 Apr 2010, lopamudra chatterjee wrote:
>
>> Hi,
>>
>> For all the parameters apart from the no of grid points and processor I am running with the default parameter.
>> So the
>> timestep=28800.0  
>>
>> Regards,
>> Lopamudra
>>
>> On Mon, 12 Apr 2010 18:35:40 +0530 wrote
>> >The amount of time taken for GEMS to execute the Ocean benchmark also
>> >depends upon the number of time steps for which the Ocean simulation is
>> >carried out.
>> >
>> >--
>> >Nilay
>> >
>> >On Mon, 12 Apr 2010, lopamudra chatterjee wrote:
>> >
>> >> Hi,
>> >>
>> >> I am running Ocean benchmark with 32 processors.
>> >> But the initialization finish time & overall finish time comes in negative.
>> >> But the correct.out file of model output has positive values althigh it is run with 1 processor
>> >>
>> >> Is a negative value wrong?
>> >>
>> >> Another question
>> >> The run is  taking a long time .
>> >> With 16 core ,4 L2 banks ,1 memory and 18X18 grid points it takes about 2 hours whereas I saw some one saying in the newsgroup that it runs for 18 minutes for them with 4 threads on
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> 258 X 258 grid of integers in a 16 core machine.
>> >> I am running on a 1.3 ghz intel core2 duo machine .
>> >> So anyone has any idea why this is taking so long?
>> >>
>> >> Thanks,
>> >> Lopamudra
>> >>
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