Dear volunteers,
We are back! The wait has been longer than we would have liked, but surprisingly, what we bring comes sooner than we expected. Ivan Royo has been working this term on the 1D version of DENIS (denis-fiber) and we already have a first version to start testing. It is a fairly advanced version of what will be the final one (still without checkpoints), but at this point it is very useful to start testing to see that everything is going well and to polish the last details.

Thanks to a grant from the Ministry, Iván is studying how cellular differences (interpatient variations) affect the propagation of the electrical impulse in the heart, and for this we need to scale up. If the tests go well, we will start running simulations within this new project. For now, they are all functional tests. We will start with manageable simulation sizes and gradually increase the number based on how the server responds and our post-processing capacity.

The optimization of the models is still pending as well, I hope we can resume it soon.

Best regards,
Jesús.

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Estimados voluntarios:
¡Estamos de vuelta! La espera ha sido más larga de lo que habríamos querido, pero sorprendentemente, lo que traemos viene antes de lo que esperábamos. Ivan Royo ha estado este curso trabajando en la versión 1D de DENIS (denis-fiber) y ya tenemos una primera versión para empezar a hacer pruebas. Es una versión bastante avanzada de lo que será la final (aún sin chekpoints), pero en este punto nos viene muy bien poder empezar a hacer pruebas para ver que todo marcha bien e ir puliendo los últimos detalles.

Gracias a una beca del Ministerio, Iván está estudiando cómo afectan las diferencias celulares (variaciones interpaciente) en la propagación del impulso eléctrico en el corazón, y para ello necesitamos subir de escala. Si las pruebas van bien, comenzaremos a lanzar simulaciones dentro de este nuevo proyecto. De momento son todo pruebas de funcionamiento. Vamos a empezar con tamaños de simulaciones manejables e ir aumentando el número para cómo va respondiendo el servidor y nuestras capacidad de postprocesado.

La parte de la optimización de los modelos está aún pendiente también, espero que podamos retomarla en breve.

Un saludo,
Jesús.

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Jesús Carro
Universidad San Jorge
@InSilicoHeart

Wonderful news.
Congratulations, Jesus and your team!

We look forward to continuing our contributions.

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i am looking forward to this too, but please see https://denis.usj.es/denisathome/forum_thread.php?id=307&postid=2561

We are analyzing the problem.

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Jesús Carro
Universidad San Jorge
@InSilicoHeart

Dear Jesús,
All members of Carl Sagan team look forward to continuing to contribute.

¡Esta es una noticia excelente Jesús!
Estoy muy agradecido y optimista por vuestro desempeño y determinación en este proyecto Denis.

¡Enhorabuena a Iván Royo también por la beca del Ministerio!
Esta os permitirá de progresar con vuestro trabajo y de profundizar vuestra investigación sobre las células del nuestro corazón. Además, esta nueva exploración os consentirá de comprender como las variaciones interpaciente afectan las diferencias celulares en la propagación del impulso eléctrico en el corazón.

Os proporcionaré todo el apoyo posible(con BOINC) a vuestro proyecto.
Gracias de todo.

WOO HOO!!!

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Well, getting WUs now for the second days, but beside a rather large percentage of returned WUs stuck in PVa jail (406 vs 286 valid, with no errors), there doesn't seem to be the data for the update of BPINCstats, etc being updated. It's now well beyond 24h that there aren't any new stats showing up on those external sites... :(

And just checking a couple of my clients running DENIS and they have WU stuck uploading, with error message is the log of the BOINC client being "Server out of disk space".. :( :(

Ralf

Yep yep . We going too fast and they run out of the space .. this wont be likely fix to monday and then when they add space, its likely to overload servers with all the people uploading .)

And just checking a couple of my clients running DENIS and they have WU stuck uploading, with error message is the log of the BOINC client being "Server out of disk space".. :( :(

Me too.

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Stuck with no uploading or downloading , hope its fixed before they start timing out on Monday .

In every new simulation we test the limits of DENIS. It has been hard to find how to solve the situation today, but I think that now we are able to validate workunits faster than you upload new ones and the problem seems to be solved. The free space is now increasing in the server!

Thank you for your patience!

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Jesús Carro
Universidad San Jorge
@InSilicoHeart

Yeah, uploads work again, that's great !

But now you still have to solve the problem for Linux-Clients, that can't connect to Denis@Home:

Diego VLneu

13258 DENIS@home 30-03-2025 22:04 update requested by user
13259 DENIS@home 30-03-2025 22:04 Fetching scheduler list
13260 DENIS@home 30-03-2025 22:04 Scheduler list fetch from https://denis.usj.es/denisathome/ failed: permanent HTTP error
13261 DENIS@home 30-03-2025 22:05 work fetch suspended by user

or

ATLAS6 L1

170 DENIS@home 30-03-2025 15:55 work fetch resumed by user
171 DENIS@home 30-03-2025 15:55 update requested by user
172 DENIS@home 30-03-2025 15:55 Sending scheduler request: Requested by user.
173 DENIS@home 30-03-2025 15:55 Requesting new tasks for CPU
174 DENIS@home 30-03-2025 15:55 Scheduler request to https://denis.usj.es/denisathome_cgi/cgi failed: Error 403

In the same network my windows-clients can connect without any problems.

The Linux-Machine are Ubuntu 22.04 with full patches, all BOINC-Clients here are 8.0.4

Yeti

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It is now working pretty well, but I get this message from time to time -- rarely, not often.

Sun 30 Mar 2025 11:55:52 PM EDT | DENIS@home | Reporting 20 completed tasks
Sun 30 Mar 2025 11:55:52 PM EDT | DENIS@home | Requesting new tasks for CPU
Sun 30 Mar 2025 11:57:34 PM EDT | DENIS@home | Scheduler request failed: Error 524

My guess is that there is no work available, but it takes too long to report it.

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We are slowly recovering from the out-of-space problem. We have paused the generation of new tasks until everything is completely resolved.

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Jesús Carro
Universidad San Jorge
@InSilicoHeart

We are slowly recovering from the out-of-space problem. We have paused the generation of new tasks until everything is completely resolved.

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Jesús Carro
Universidad San Jorge
@InSilicoHeart

I think that now we are able to validate workunits faster than you upload new ones and the problem seems to be solved.

For me the problem is not the credits, but the fact that no validation=no science...

I think that now we are able to validate workunits faster than you upload new ones and the problem seems to be solved.

For me the problem is not the credits, but the fact that no validation=no science...

What do you mean no science? His work is way different than anything else on here.
He's studying something that even I really don't get and I have worked around medical people in giant congress (conventions in US English) and sat in the room operating projection equipment for surgeons, upcoming doctors and some research doctors. So I don't know where you get the idea of no science.

What do you mean no science? His work is way different than anything else on here......So I don't know where you get the idea of no science.

If they don't validate the wus, they have NOT scientific results of their simulations.
And, if you don't have scientific results you have not science.
It's simple.

Any update on the issues that prevent many clients and statistics gathering sites from connecting to Denis?

See here:
https://denis.usj.es/denisathome/forum_thread.php?id=307
https://denis.usj.es/denisathome/forum_thread.php?id=199