Hi there, i am new to this project and just have a question about the download/upload of work files.
I am on a restrictive internet connection, and would like to know how much downloads/uploads are used on average when working on a project.
Are we talking megabytes? >10mb per work unit? More?

Is there a way i can contribute without getting assigned huge projects that make my internet download bill skyrocket?

any help appreciated
-mitch

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Hi there, i am new to this project and just have a question about the download/upload of work files.
I am on a restrictive internet connection, and would like to know how much downloads/uploads are used on average when working on a project.
Are we talking megabytes? >10mb per work unit? More?

Is there a way i can contribute without getting assigned huge projects that make my internet download bill skyrocket?

any help appreciated
-mitch

The initial download might be as large as 15Mb, but this includes the Rosetta application. The average Work Unit should be about 3Mb. The average upload is less than 500k.

the project has a user selectable "Time" parameter which is designed specifically to help your situation. See this FAQ.

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Moderator9
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Hi there, i am new to this project and just have a question about the download/upload of work files.
I am on a restrictive internet connection, and would like to know how much downloads/uploads are used on average when working on a project.
Are we talking megabytes? >10mb per work unit? More?

Is there a way i can contribute without getting assigned huge projects that make my internet download bill skyrocket?

any help appreciated
-mitch

The initial download might be as large as 15Mb, but this includes the Rosetta application. The average Work Unit should be about 3Mb. The average upload is less than 500k.

the project has a user selectable "Time" parameter which is designed specifically to help your situation. See this FAQ.

Thankyou for the help!
I've altered my settings accordingly, and am ready to roll again.
Cheers, mitch

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These larger work files like the 9MB and 6 MB's are making it tough on us dial-uppers. Im running 3 computers and keeping them loaded is getting harder with the bigger files and i only connect at 32Kbps and i leave connection on for 8- 12 hours everynight.

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i just did a test on the file: hom001_aat325_09_05.200_v1_3 (from within hom001_aat325_09_05.200_v1_3.gz).
the gzipped file that rosetta downloads is 6486 kB.
i tried recompressing using zip and rar compression and got sizes of about 6420 and 3300 kB, so rar gives about half the size of zip and gz.

so maybe you could try using another compression format (instead of gz, maybe bz2 or 7z --- i'm too lazy to download and test these) and you might be able reduce the download size. this would be very helpful for the dial up users.

i just did a test on the file: hom001_aat325_09_05.200_v1_3 (from within hom001_aat325_09_05.200_v1_3.gz).
the gzipped file that rosetta downloads is 6486 kB.
i tried recompressing using zip and rar compression and got sizes of about 6420 and 3300 kB, so rar gives about half the size of zip and gz.

so maybe you could try using another compression format (instead of gz, maybe bz2 or 7z --- i'm too lazy to download and test these) and you might be able reduce the download size. this would be very helpful for the dial up users.

This has been discussed before (more than once). The issue is not as simple as just changing the compression methods used. This is all intertwined with the BOINC software as well. The project is currently using the data transmission and compression system that is integrated into BOINC.

In the last few weeks, the size of the files has been reduced by 33%. The user adjustable "time" setting was developed to reduce the need to download work units and still keep a system busy, specifically for modem users. If you are on a modem, you should have the "time" setting adjusted for as long a period of time as it will allow. Right now that is 24 hours. So if your setting is 24 hours, you would have to download a single work unit every 24 hours of CPU time. The maximum time adjustment will eventually be on the order of 4 days. So under those circumstances, the amount of data downloaded over time will be significantly reduced.

In any case there will not be any change to the compression used during CASP. This is just a very bad time to introduce new issues that could cause new problems.

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Moderator9
ROSETTA@home FAQ
Moderator Contact

These larger work files like the 9MB and 6 MB's are making it tough on us dial-uppers. Im running 3 computers and keeping them loaded is getting harder with the bigger files and i only connect at 32Kbps and i leave connection on for 8- 12 hours everynight.

Howdy, fellow FADbeen..
Have you switched to 24 hour WUs, so that you're only transfering one WU per night per machine (and less than 3 hours online a day even if they were 9MB each?)

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In any case there will not be any change to the compression used during CASP. This is just a very bad time to introduce new issues that could cause new problems.

agreed! i was just surprised how much difference there was between rar and gz.

i know that all of the rosetta people have done a lot to make things as easy as possible for modem users (of which i'm not), which i'm sure that many are grateful for.