[Sidefx-houdini-list] render-memory problem

Jed Schwartz jed at jedschwartz.com
Fri Aug 4 13:54:11 EDT 2006


I'll try again with the latest RHEL 4  64 as soon as I get a break in  
production-
Thanks for all the great feedback-
Jed
On Aug 4, 2006, at 1:39 PM, Mark A. Bolstad wrote:

> Jed Schwartz wrote:
>>
>> On Aug 4, 2006, at 11:46 AM, Mark A. Bolstad wrote:
>>
>>>
>>> Are you running 32 or 64-bits?
>>
>> 32- Originally (jan 06) I set this box up as a 64, but had way too  
>> many linux sys problems, so we went back to 32-
> Interesting, all of my systems are RHEL4 on x86_64 with absolutely  
> on problems (I have about 30 of them).
>
>>>
>>> If 32-bits, see if running 64-bit Houdini on a 64-bit box works.
>>>
>>
>> Hmm- I thought there was a 2 gig limit with linux 32- (RH E4), a 3  
>> gig limit with 64- ??-
>
> Actually, the largest integer you can represent in 32-bits is  
> 2147483648 (2^31), however, if you use unsigned integers than you  
> get full 32 bits or 4294967296 (2^32). Hence, 4 GB is the largest  
> addressable memory with 32-bit systems. With 64-bits the maximum  
> addressable space is 16 exobytes (kilo-, mega-, giga-, tera-,  
> peta-, exo-)
>
>>> 4 GB is the limit for a 32-bit system, and given the size of your  
>>> core file, that's my suspicion. A lot of memory allocators grow  
>>> the amount of memory allocated each call to try to reduce  
>>> overhead. You may have hit a magic threshold where one more  
>>> allocation send you over the 4GB barrier.
>>>
>>> Depending on the platform, an out-of-memory error may be in a  
>>> system log.
>>
>> I'll check the log fie-
>>
>> Thanks,
>>
>> Jed-
>>>
>>> Mark
>>>
>>> Jed Schwartz wrote:
>>>> I am getting a 3 gig core file-
>>>> Specifically which cache setting?-
>>>> 10 years at this and still so much to learn!
>>>>
>>>> Jed-
>>>>
>>>> On Aug 4, 2006, at 10:26 AM, Peter Robbinson wrote:
>>>>
>>>>> Morning,
>>>>>
>>>>> Have you possibly missed a cache setting and it is dumping to a
>>>>> harddrive?
>>>>>
>>>>> PeterR
>>>>>
>>>>> On Fri, 2006-04-08 at 10:09 -0400, Jed Schwartz wrote:
>>>>>> I'm getting a total freeze up in the middle of a render on  
>>>>>> frame 741
>>>>>> on one of several systems in the studio-
>>>>>> All other systems render the frame without problem- All  
>>>>>> running the
>>>>>> latest H-build- 8.1.681
>>>>>>
>>>>>> Am I correct to assume that we have some flakey memory on this  
>>>>>> newest
>>>>>> and fastes system-?
>>>>>>
>>>>>> Thanks!!
>>>>>>
>>>>>> Jed-
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
>>>>> --"gravity is not a force, it is a boundary layer"
>>>>> "everything is coincident"
>>>>> "Love: the state of suspended anticipation"
>>>>>
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>>>>
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