Posts by chau

1) Message boards : Development : Validation problems (roadmap) application+server (Message 271)
Posted 8 Jan 2014 by chau

Hi,

This is a new version of validator. The performance is slow because we need to extract contents from zipped files. After that we compare 2 files to find the similar and different edges. Since size of every file is about nearly 30MB, it is also a reason why the performance is a little bit slow.

2) Message boards : Development : Meeting proposal - Dec 30, 15:00, at my office (Message 196)
Posted 26 Dec 2013 by chau

It's ok for me.

3) Message boards : Development : validation issues in 0.02 (Message 195)
Posted 26 Dec 2013 by chau

Hi,

For validator, I nearly finish the code to get information about files. I also sent an email to Valter and Professor to give some options about how to match between files. The validator will soon be updated. Thanks

4) Message boards : Development : validation issues in 0.02 (Message 185)
Posted 25 Dec 2013 by chau

Hi Paolo, Daniel

Thanks for this. Moreover, when you try to compress the file, can you distinguish name of original file and name of compressed file as different names.

For example: name of compressed file should be "name_c" and name of original file should be "name". Actually, this is more convenient for me to process files after unzipping it(avoid coincidence in name of files). Moreover, after unzipping files, I will delete the compressed file. So it is easier to distinguish between two kinds of files.

I think I solved the problem. So you don't need to change names of files.

5) Message boards : Development : validation issues in 0.02 (Message 181)
Posted 25 Dec 2013 by chau

Hi Daniel,

The results before I test them are the same, that's why I used md5. I will improve it but the problem is how much difference between WUs would probably be marked as unaccepted or accepted. How much difference you will consider as small difference and high difference? What kind of difference will be considered as different or similar. What is the case if we marked them in a wrong way?. I sent an email to Paolo to ask more detail about that. Thanks and Merry Christmas.

6) Message boards : Development : validation issues in 0.02 (Message 177)
Posted 24 Dec 2013 by chau

I mean, when you write to a file, do you set the mode to write files as binary mode or text mode?

7) Message boards : Development : validation issues in 0.02 (Message 176)
Posted 24 Dec 2013 by chau

Hi,

After checking files from WU 23056 and removed the character CR(\r), I still see the difference between two files( result_id 36654 and 36655) even though they are running on the CPU Intel core-i( result_id 36786, after removing the CR \r, they have a big different size with the rest files). Can you please check it again? Thanks

8) Message boards : Development : validation issues in 0.02 (Message 171)
Posted 24 Dec 2013 by chau

By the way, Paolo, when you output results to files, can you please take a look at the format of output? I mean, can you set the mode to "binary" instead of "text"? In windows, the new line is '\r\n' and in unix, the new line is '\n'. Thanks

9) Message boards : Development : validation issues in 0.02 (Message 170)
Posted 24 Dec 2013 by chau

Hi,

The current validator is checking files by md5. That's why when you receive two files with different check_sum, they will mark as different. I'm improving it with removing \r (Carriage-Return) before comparing it. Thanks

10) Message boards : Development : validation issues in 0.02 (Message 167)
Posted 24 Dec 2013 by chau

OK. I will check it. Thanks

11) Message boards : Number crunching : Weird redundancy (Message 85)
Posted 19 Dec 2013 by chau

Hi Valter,

There are somethings wrong with the results from client. I also have the same situation, I have 2 tasks of WU 21058 running on my computer. The results are already completed and sent back to servers but when I check it, they have different results and different check_sum. That's why the validator marked as inconclusive.

12) Message boards : Number crunching : Wus aborted by project (Message 63)
Posted 18 Dec 2013 by chau

Hi,
Thanks for your information. For the case EXIT_ABORTED_BY_PROJECT. This may happen since the client app on computer of user is exited unexpectedly while running WUs.
You can refer the link below for more information.

http://boincfaq.mundayweb.com/index.php?view=382&language=1

13) Message boards : Number crunching : Wus aborted by project (Message 62)
Posted 18 Dec 2013 by chau

Hi,

Thanks for your information. Validation is working fine.

Following the task Id and WU id(Task: 30720, WU id: 21157) you reported, we couldn't find the results on server. Since the file is not marked as "deleted" yet in database, this means server hasn't received any results from the clients for this WU from this task. Following the link below, it states that "Validation Error" means

Error - Some event occurred to keep the result from finishing properly. This could be due to the user canceling the result, a BOINC error or a science application error

http://www.dslreports.com/faq/15037

Thanks, please post if you have any questions

14) Message boards : Development : The validator won't run (Message 24)
Posted 27 Nov 2013 by chau

Hi all,

The validator suddenly stops to work when it informs an error like:
"error while loading shared libraries: libmysqlclient.so.16: cannot open shared object file: No such file or directory"

I tried to replace with an original validator but it still hasn't worked. After searching on google, somebody stated that I need to install package libmysqlclient16-dev. Moreover, this validator still worked somedays before and now it doesn't work anymore. Anyone has an idea about that?

I think I know the problem. The file is compiled at my local machine, so some libraries are not included.

15) Message boards : Development : Credits (validator) (Message 19)
Posted 21 Nov 2013 by chau

Hi Francesco,

Server side supports a daemon called trickle message. This will help clients communicate with a server during the execution of a workunit and also inform to the server a summary of a computational state at client. So that, we can consider to grant some credits to a client without waiting the completion of a workunit. This trickle-up messages should be sent from client to server, but I have no idea how to send from client to server. Can you please check it?

PS: I think you can find http://boinc.berkeley.edu/trac/wiki/TrickleApi to get more information.