WebMO - Computational chemistry on the WWW
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August 23, 2019

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Y. Zhang
Unregistered guest
Posted on Friday, October 17, 2014 - 11:24 am:   

Hi,
I am a TA for a chemistry course at Queen's University, Canada and we use 9.1.002p. We had a lot of problems with java recently and we so far managed to overcome them. However, I am not sure if our webmo server is slow or webmo 9 does not work well with java 7-8 but it takes forever to navigate in webmo (it takes forever to load screens), especially when where are multiple users. I hope you can suggest something to improve our performance. Thanks
JR Schmidt
Moderator
Username: Schmidt

Post Number: 423
Registered: 11-2006
Posted on Friday, October 17, 2014 - 1:03 pm:   

Hard to tell what the problem is. Java issues are all resolved with recent version of WebMO.

If slow performance scales with the number of users, it could be overloading your web server. A modern (quad core) web server should be able to handle a LARGE number of users with no problem. Older servers may fair worse with many (50+) simultaneous users.

Also, if you are running jobs directly on the web server, this will cause a huge load and slow web performance. In a many-user environment, use WebMO Pro with remote computational servers or WebMO Enterprise interfacing to a computer cluster.
Y. Zhang
Unregistered guest
Posted on Monday, October 20, 2014 - 11:17 am:   

Hi JR Schmidt,

Thanks for your reply. We are using the webmo pro with remote computational server and 7 other PC to compute. Our server is equipped with windows XP and we are experiencing a very slow even with four simultaneous users. what would be your best advice? to upgrade the server with better processors?
JR Schmidt
Moderator
Username: Schmidt

Post Number: 424
Registered: 11-2006
Posted on Monday, October 20, 2014 - 11:22 am:   

I would guess a server upgrade is in order. Performance is going to be MUCH better on a modern machine. Performance is likely also better for a linux-based server vs. Windows.

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