[esp-r] Re: Infinite Loop

[Achim Geissler]

Dear Paul,

when I hear green house, what are your constructions. One possible problem is a construction with too little thermal mass - that may lead to numerical issues, possibly when solar radiation gets higher (“spring”) and temperatures are still low. What are your constructions? Any very thin layers?

Best
Achim

> On 25 Apr 2018, at 20:13, Paul <paulnee at xplornet.com> wrote:
> 
> Thank you for your reply.
> 
> There  are no controls defined.
> 
> Your are correct about a short simulation. It still loops with a short sim.
> 
> The model is very simple. I have attached the zone1.geo file.
> 
> There is no output to the console.
> 
> My simulation goal is to simulate a greenhouse with thermal mass over a year and this is just the bare bones of it.
> 
> Thanks,
> 
> Paul
> 
> 
> On 2018-04-25 12:17 PM, Achim Geissler wrote:
>> Dear Paul,
>> 
>> do you have this problem when running a short simulation which covers said hour, also?
>> 
>> Do you have controls defined? What changes in said hour which could have control response issues? Is there any output to the console?
>> 
>> Usually, iterative loops in ESP-r have an upper limit, so it should come to a solution at some point. However, there are exceptions to this, sadly.
>> 
>> Again, without any information about your model it is difficult to help close in on the issue.
>> 
>> Best
>> Achim
>> 
>> - by the way, what is your affiliation and what are your simulation goals?
>> 
>> 
>> 
>>> On 24 Apr 2018, at 21:01, Paul <paulnee at xplornet.com> wrote:
>>> 
>>> Firstly thanks for all the help so far.
>>> 
>>> When I try to do a long simulation bps goes into a loop around 2184
>>> hours. It is consuming 100% of the cpu and about 1517884k of ram. The
>>> machine has 8gb of ram of which 4gb is free at the time when it loops.
>>> 
>>> Does bps have size or time limits?
>>> 
>>> I've tried it with other weather files and it still loops.
>>> 
>>> Thanks,
>>> 
>>> Paul
>>> 
>>> 
>>> _______________________________________________
>>> esp-r mailing list
>>> esp-r at lists.strath.ac.uk
>>> http://lists.strath.ac.uk/mailman/listinfo/esp-r
>> achim.geissler at intergga.ch
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> esp-r mailing list
>> esp-r at lists.strath.ac.uk
>> http://lists.strath.ac.uk/mailman/listinfo/esp-r
> 
> <zone1.geo>

achim.geissler at intergga.ch