Model taking too long to run

[gabrielcaetano]

Hello, I´m trying to run a full POPAN model with 144 occasions and 528 individuals, and it's taking way too long. The strange thing is that with just a few less occasions it would take only 3 days to run, now it seems it will take months, because it's been running for almost 20 hours and it's only made about 40 iterations. Does anyone know some way to speed it up? Here are my system specifications:

AMD Athlon 64 X2 Dual core processor 3800+ 2.00 GHz
RAM: 2 Gb
32 bits

Thank you,

Gabriel

[gabrielcaetano]

Also, it got slower now that i updated to 6.2

[bacollier]

Hello, I´m trying to run a full POPAN model with 144 occasions and 528 individuals, and it's taking way too long. The strange thing is that with just a few less occasions it would take only 3 days to run, now it seems it will take months, because it's been running for almost 20 hours and it's only made about 40 iterations. Does anyone know some way to speed it up? Here are my system specifications:

AMD Athlon 64 X2 Dual core processor 3800+ 2.00 GHz
RAM: 2 Gb
32 bits

Thank you,

Gabriel

Gabriel,
There are a few possible reasons it could be taking a while to run, most are hard to debug online without the data/model structure to tinker with. With a simple g*t model with 144 occasions if you have 2 groups and are just looking at apparent survival, recapture prob, entry, that's a bunch of parameters MARK has to chug through. You might be able to speed it up a bit by providing some initial parameter estimates, but will probably not help much. Do less complicated models fit faster?

I have had some models take a week to run, and a recent bootstrap analysis in MARK took 9 weeks on my system (64bit quad core with 16gb ram using 7 of 8 processors 24/7), so I will tell you what Gary told me during that analysis (which may be of little consolation to you): be happy, computer time is cheap...

Bret

[gabrielcaetano]

Thanks for the answer. I tried moving it to a six-core 3.3GHz with 2.75 GB of RAM and it is still at the same speed, it's using about 90% of each of the six and only 600mb RAM. I guess I'll just have to wait and hope it doesn't give me an error message, but thanks anyway.