[MITgcm-support] How to calculate the RAM requirement?
Brainf
brainf at 163.com
Mon May 14 21:16:55 EDT 2007
Dear Christopher L. Wolfe,
My OS is SGI IRIX64 6.5 ,64bit, and I'm runing MPI mode.
OC 3% limit
cputime unlimited
filesize unlimited
datasize unlimited
stacksize unlimited
coredumpsize unlimited
memoryuse 8285840 kbytes
descriptors 200
vmemoryuse unlimited
threads 1024
Now grid 100x580x24 succeed, grid 100x600x24 was failed ,
So I think 100x580x24 is the highest resolution.
Maybe the resolution 1440x720x24 need more than 8GB RAM.
Does insufficient memory caused this problem?
Who knows the RAM requirement of the resolution 1440x720x24?
======= At 2007-05-15, 01:09:30 you wrote: =======
>
>Dear Brainf,
>
>What is the platform and operating system you are working under? Is it
>a 32 or 64 bit OS? Are you running MITgcm in SMP or MPI mode? I know
>that with 32 bit Linux in the default configuration, the maximum
>addressable space available to a *single* process is 2 GB, even if you
>have more memory. If you run in SMP mode, I believe the 2 GB limit
>applies to the whole team of threads. You might try running in MPI
>mode, if you haven't already.
>
>Christopher
>
>-----------------------------------------------------------
>Dr. Christopher L. Wolfe 858-534-4560
>Physical Oceanography Research Division OAR 357
>Scripps Institution of Oceanography, UCSD clwolfe at ucsd.edu
>-----------------------------------------------------------
>
>On May 14, 2007, at 6:03 AM, Brainf wrote:
>
>> Dear Matthew Mazloff,
>>
>> It just output 'Killed'
>>
>> BRAIN 57% ./mitgcmuv1440x720x24
>> Killed
>> BRAIN 57%
>>
>>
>> My mem:
>>
>> 100 processes: 98 sleeping, 1 zombie, 1 running
>> 16 CPUs: 99.9% idle, 0.0% usr, 0.1% ker, 0.0% wait, 0.0% xbrk,
>> 0.0% intrr
>> Memory: 8192M max, 7744M avail, 6252M free, 4096M swap, 4096M free swap
>>
>>
>> ======= At 2007-05-12, 23:53:17 you wrote: =======
>>
>>> looks like you need 2GB RAM, what's the error you get?
>>>
>>>
>>> On May 11, 2007, at 9:23 PM, Brainf wrote:
>>>
>>>> Dear Matthew Mazloff,
>>>>
>>>>
>>>> I test 1440*720*24 grid
>>>>
>>>> size mitgcmuv1440x720x24
>>>>
>>>> Section Size Physical Virtual
>>>> Address Address
>>>>
>>>> .interp 21 268435732 268435732
>>>> .MIPS.options 128 268435760 268435760
>>>> .reginfo 24 268435888 268435888
>>>> .dynamic 328 268435912 268435912
>>>> .liblist 100 268436240 268436240
>>>> .dynstr 14075 268436340 268436340
>>>> .hash 7832 268450416 268450416
>>>> .dynsym 14912 268458248 268458248
>>>> .MIPS.symlib 932 268473160 268473160
>>>> .rel.dyn 10728 268474092 268474092
>>>> .msym 7456 268484820 268484820
>>>> .conflict 8 268492276 268492276
>>>> .MIPS.stubs 888 268492284 268492284
>>>> .text 2431396 268493184 268493184
>>>> .init 80 270924592 270924592
>>>> .rodata 133199 270925824 270925824
>>>> .data 8632 271059024 271059024
>>>> .got 4668 271067656 271067656
>>>> .lit8 1800 271072328 271072328
>>>> .sbss 15976 271074128 271074128
>>>> .srdata 11885 271090104 271090104
>>>> .lit4 168 271101992 271101992
>>>> .sdata 24 271102160 271102160
>>>> .bss 2164500888 271102208 271102208
>>>> 2500793 + 164467 + 2164500888 = 2167166148
>>>>
>>>> Does this mean I need 2G RAM ?
>>>>
>>>> I have 4G RAM, But can't run it for 1440*720*24 grid.
>>>> 100*80*24 grid success.
>>>>
>>>>
>>>> ======= At 2007-05-11, 20:20:12 you wrote: =======
>>>>
>>>>> try
>>>>> size mitgcmuv
>>>>> to get upper limit
>>>>>
>>>>>
>>>>> On May 10, 2007, at 10:57 PM, Brainf wrote:
>>>>>
>>>>>> Dear mitgcm,
>>>>>> My grid is 360*180*24, I need ?GB of RAM? How to calculate the
>>>>>> RAM requirement at least?
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Best regards.
>>>>>>
>>>>>> Brainf
>>>>>> brainf at 163.com
>>>>>> 2007-05-11
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> MITgcm-support mailing list
>>>>>> MITgcm-support at mitgcm.org
>>>>>> http://mitgcm.org/mailman/listinfo/mitgcm-support
>>>>>
>>>>> _______________________________________________
>>>>> MITgcm-support mailing list
>>>>> MITgcm-support at mitgcm.org
>>>>> http://mitgcm.org/mailman/listinfo/mitgcm-support
>>>>>
>>>>
>>>> = = = = = = = = = = = = = = = = = = = =
>>>>
>>>>
>>>> Best regards.
>>>> Brainf
>>>> brainf at 163.com
>>>> 2007-05-11
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> MITgcm-support mailing list
>>>> MITgcm-support at mitgcm.org
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>>>
>>> _______________________________________________
>>> MITgcm-support mailing list
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>>
>> = = = = = = = = = = = = = = = = = = = =
>>
>>
>> Best regards.
>> Brainf
>> brainf at 163.com
>> 2007-05-14
>>
>>
>>
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>>
>
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= = = = = = = = = = = = = = = = = = = =
Best regards.
Brainf
brainf at 163.com
2007-05-15
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