Posts by jcastro
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1) Message boards : News : Problems in the server (Message 1314)
Posted 11 Sep 2017 by Profile jcastro
Hello everyone,

This lack of information is caused by two events that have happen at the same time. The Database crash that has cause a lot of work to restore it and create new redundancy methods.

And also a reorganization in the project. Due to private problems I have had to leave the project ( I will be connected to it as much as I can but as external helper). This caused that Jesus will have to carry with the entire project meanwhile he is teaching at University which is his priority.

This is why now the news will be released slowly than before, but I've to assure you that the project is not stopped or paused.

Best regards, Joel.
2) Message boards : Number crunching : boinc - Computer Optimisation - CPU , GPU & RAM - PC, Mac & ARM development - for programmers SDK links (Message 1225)
Posted 7 Jun 2017 by Profile jcastro

Those improvent are in our horizont, we will look all the information you give to us, but we have other work to do on our simulator that is still in progress.

Also, is important to know that our application wants to cover as much computers as possible, it means compile with low versions of libraries etc... But in a future we will do our best to obtain a CPU optimized application and maybe a GPU application that could cover other approaches of electrophysiology.

Last but not least, thanks for the info.

Best regards, Joel.
3) Message boards : Number crunching : all WU for version 1.1 end with error (Message 1207)
Posted 16 Apr 2017 by Profile jcastro
WUs from the faulty subproject are working correctly now.

Best regards, Joel.
4) Message boards : Cafe : Computation error (Message 1200)
Posted 6 Apr 2017 by Profile jcastro

We are regarding this problem. For more information, please look at here:

Best regards, Joel.
5) Message boards : Number crunching : all WU for version 1.1 end with error (Message 1199)
Posted 6 Apr 2017 by Profile jcastro
The problem I think don't have relation to the software version. It could be related to some parameters that are calculated with the time needed for other WUs of the same project. Those WUs were smaller simulations and they could change the time exceed factor that multiply the FLOPs necessary for each task. Anyway, we have cancel new tasks and we will relaunch them after few tests.

Best regards, Joel.
6) Message boards : Number crunching : all WU for version 1.1 end with error (Message 1197)
Posted 6 Apr 2017 by Profile jcastro
Hi! We are going to stop the delivery of that faulty WUs until we know exactly was goes wrong.

Best regards, Joel.
7) Message boards : Number crunching : Optimized app (Message 1189)
Posted 4 Apr 2017 by Profile jcastro
We know that optimize our application is really hard, because the main operations are inside the models. So when we add a new model to the project, the optimization have to be done on each separate model.

This is why we have try to optimize the way we convert from CellML to C, we have modify few things from the code of the last optimization and we are looking different approaches to make the app faster.

Also, in the other hand, we have to develop software as much stable as possible and it can be executed also in old machines, so we have to use old versions of compilers and libraries.

In addition I will thank a lot to the people that have released their optimized versions, because we have learned a lot reading his code.

Best regards, Joel.
8) Message boards : Number crunching : Compression of output files (Message 1188)
Posted 4 Apr 2017 by Profile jcastro

we thought that those files were small to uses cpu time to compress them. But yes, it could be an improvement for the next version. We will take it into account, analyze the pros and the cons and release that improvement with new additions for the next version.

Best regards, Joel.
9) Message boards : Number crunching : NO SSL Certificate -> makes BOINC users vulnerable (Message 1167)
Posted 21 Feb 2017 by Profile jcastro
We are working with the university IT Staff to solve this issue.

Best regards, Joel.
10) Message boards : Number crunching : Start climbing (Message 1163)
Posted 20 Feb 2017 by Profile jcastro
Congratulations! :)
11) Message boards : Number crunching : Optimized app (Message 1138)
Posted 20 Jan 2017 by Profile jcastro
The stable version of denis simulator is here:
12) Message boards : Number crunching : Optimized app (Message 1135)
Posted 19 Jan 2017 by Profile jcastro

New simulations are a bit longer. Also this new version calculates markers which could cost just a bit more.

We are working on the database and the optimization of the app is on our horizont but is not our priority. The part of the code which could be highly optimizable is the one that comes from the model, so we have to modify the tool we use to traduce CellML to C++ so there is not a trivial work.

Best regards, Joel.
PD: The code is open for everyone. If you know how to compile with a better compiler or with SSE additions you can do it! :)
13) Message boards : Number crunching : My 1 processor is desapear, why ? (Message 1131)
Posted 14 Jan 2017 by Profile jcastro
Hi! It happen just with our app or with other apps?? Maybe it could be related with the preferences, maybe it leaves one core to use by other processes of the computer.

Best regards, Joel.
14) Message boards : News : Launch of new Application (Message 1128)
Posted 12 Jan 2017 by Profile jcastro

We are storing the markers of the simulations in a NoSQL database. Meanwhile we are developing a webapp to access to the data.

We are populating one model now. In a future we can populate more, so It will be work for a lot of time.

Now we are not "using" the data. We need more markers and also this data could be useful to other scientist, so we are working on the way we share those markers.

Best regards, Joel.
15) Message boards : News : Launch of new Application (Message 1122)
Posted 5 Jan 2017 by Profile jcastro

We think that is related to the compiler. The OSX compiler is based in a private compiler that comes with xcode, and windows version of the app is based on MinGW Compiler. But the code is the same for every version.

Also we can't do all the optimizations in order to maintain the compatibility.

Best regards, Joel.
16) Message boards : News : Launch of new Application (Message 1120)
Posted 4 Jan 2017 by Profile jcastro
Hi everyone,

As some of you have noticed, there are new WUs in the system. We are starting with a small peak of work, but the idea is to maintain a continuous flow of new WUs.

This new part of the project is related to a Database of markers of the simulations. We are populating a database with relevant values of the simulations to make to scientist easy the way to make a exploratory study of the model or avoid making all the time the same simulations.

We are working on the interface of this database and how to integrate in our website, also, we are developing a post to explain more this idea of the Database of markers.

Happy New Year!! And Happy Crunching!
17) Message boards : Number crunching : New work, Avast virus warning. (Message 1119)
Posted 23 Dec 2016 by Profile jcastro

We have seen that some task have had problems to start, maybe as you said, related to antivirus.

Best regards,Joel.
18) Message boards : News : New WUs Generation will be paused (Message 1108)
Posted 18 Nov 2016 by Profile jcastro
next week we hope we can start launching new WUs. We are doing research of the best way to create a useful and continuous work flow. We are looking a great solution for volunteers and researchers.

Best regards, Joel.
19) Message boards : Number crunching : Got some beta 1.06 work! (Message 1105)
Posted 10 Oct 2016 by Profile jcastro
I have 2 results running but they are very, very slow.

Based on the up time and the speed of my host I will need about 10 days to finish them and that is double the allowed 5 day deadline.

Admins can the deadline be made longer or should I just kill them?


Could you send me the id of your host. It's really strange that computational cost.

Best regards, Joel.
20) Message boards : Number crunching : Very slow site (Message 1104)
Posted 10 Oct 2016 by Profile jcastro

We have solved the issue with the wordpress login page.

Regards, Joel.

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