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News
66 items
News of the research projects that Gridcoin pays for and of the Gridcoin releases, newest first. Press releases that companies pay to publish here are in the list too, marked as sponsored: Gridcoinstats does not write them and does not stand behind what they say.
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…
Dear Volunteers,
As you may have noticed, the task hiatus has extended longer than we would have liked. I apologize for not writing sooner, as I was hoping we could launch something earlier. However, given our current workload and the steps required for the new simulations, there will be no new tasks at least until the end of February.
I apologize for this decrease in activity; we will return as soon as…
Dear volunteers,
First of all, please excuse me because I wanted to send this message a week ago, but I was not able to do so. As you have seen these days, just like last year, we are entering the summer period, and the rate of sending simulations will be affected. We hope that it does not stop completely, but the sent tasks will be reduced.
I take this opportunity to update the results of the last months: you have been optimizing one of the most used human ventricle models: the O'Hara and…
Dear volunteers,
This weekend we have broken a new record for computing Teraflops (since we are in this new stage of the project). This is thanks to the pace of sending results that you have been doing in recent days and being more stable in the generation of work packages.
Although we were monitoring it, the coincidence of this peak with the database backup on the weekend has caused the hard drive to become saturated sooner than expected. We have been working since Monday on moving data out…
Dear volunteers,
I am writing to update you on how the different experiments we had launched have been going and the next steps we will take.
On the one hand, we have finished (at least temporarily) the optimization of our model. As we had already told you, with the results that you have sent us, we managed to greatly improve how our model represented different physiological markers, but a problem that we thought we had solved had reappeared. We have tried different options but it reappeared…
Dear volunteers,
The IT department has notified us that tomorrow, starting at 3:00 p.m. (CEST), maintenance work will be carried out on the university network. It is possible that from that moment on there will be problems accessing DENIS.
Sorry for any inconvenience this may cause.
Best,
Jesús.
========================================
Estimados voluntarios:
El departamento de Sistemas de Información nos ha avisado de que mañana, a partir de las 15:00 (CEST), se realizarán trabajos de…
Dear volunteers,
We are approaching the month of August in which the university rests for vacations. While we may not stop completely, the number of tasks available this month will be fewer. Our attention to the state of the server will be reduced, so we do not want to take the risk of saturating it.
Between the 20th to 28th the stop of new tasks will be total, resuming normal activity from the 29th or 30th.
I take this opportunity to tell you that the different variations of the optimization…
Dear volunteers,
I am writing to update you on how the project is going and the results we are obtaining.
First of all, the optimization of the new model we are developing has already finished (the first one we released). Unfortunately the results have not been as expected. The optimization has worked very well and many markers have been improved, but one of the model issues that we are trying to fix has reappeared after the optimization. We think we understand where the problem is coming from…
Dear volunteers,
We update you on the status of the project and how the simulations are going. In recent weeks the search algorithm has been improving the model very little. This indicates us that the optimization is close to be finished. Once this is complete we will pass to the validation phase which we will be done outside of DENIS (DENIS is not yet prepare for the required simulations).
The improvement obtained is very considerable (you can see the graph with the evolution of the error…
Dear volunteers,
Allow me a brief message to update you on how the results are going after 15 more days of simulation.
5 iterations of the algorithm have already been completed. Of the 100 markers that we are using, 89 have already been achieved in the normal range (initially only 77 were). On the other hand, the distance between the average experimental behavior and the model has been reduced by 56.84%.
Several parameters of the algorithm indicate that there is still room for improvement.
We…
Dear volunteers,
The Science Commons Initiative has created a store to sell merchandising from BOINC projects to help fund the development of BOINC and the projects as well.
We have given them permission so you can find products with the DENIS logo. 50% of the profits on these products will go to develop BOINC and the other 50% will be donated to support DENIS.
You can see them at https://www.redbubble.com/es/shop/ap/138889661
However, if you have any questions about the products or anything…
Dear volunteers,
We have good news! After processing the results of the first iteration, we have found a combination of model parameters that improves the behavior of the model compared to the initial one. In the original version, of the 100 markers that we are using, 77 were in the experimental range: now there are 80. On the other hand, the distance between the model and the average experimental behavior has been reduced by almost 30%.
The values of several of the parameters that have been…
Dear volunteers,
I have both good and bad news to share with you regarding our recent progress. First, the good news: thanks to the results you've sent in, we have been able to identify the problem with the marker and gain a better understanding of what was happening. Additionally, it turns out that we won't need to increase the number of simulations per iteration, which is good news (for us).
However, there is also some bad news to report. We've discovered that the behavior of the model with…
Dear volunteers:
As we had indicated in previous messages, we had to stop fitting the model because there was an experiment that we could not fit well. After analyzing our results, we believe that one of the limiting factors could be in the number of simulations we do to fit the behavior of the model in the experiment. Therefore, before continuing with the model fit, we are going to do a new test to study this in detail. We just put in new simulations to help us analyze this experiment to see…
Dear volunteers,
Due to work overload in other projects we will not be able to restart sending tasks until January. Sorry that this break is taking longer than expected, we want to get back as soon as possible.
All the best,
Jesus.
====================
Estimados voluntarios:
Debido a sobrecarga de trabajo en otros proyectos no vamos a poder relanzar el envío de tareas hasta enero. Disculpad que esta pausa esté siendo más larga de lo esperada, queremos volver cuanto antes.
Un saludo,
Jesús.
Hello everyone:
First of all, excuse these days without notices from us, but the start of the course has required more time than we expected and we have not been able to be as active as we would like in the project.
We update you on how the optimization of the model is going: after 3 iterations of the algorithm, the model is gradually improving, but one of the markers is greatly limiting the improvement. We full understand why this is happening, so we need to stop and analyze it in detail…
Hi!
Due to a review of the electrical installation of the University, DENIS@home could be temporarily out of service today between 15:00 and 20:00 CEST.
Sorry for any inconvenience it may cause.
===============================
Hola!
Debido a una revisión de la instalación eléctrica de la Universidad, DENIS@home podría estar temporalmente fuera de servicio hoy entre las 15:00 y las 20:00 CEST.
Disculpad los inconvenientes que pueda causar.
Hello!
I am writing this post to summarize a little the news that we have had over the last month. As we have already commented on the forums, we detected a problem with the checkpoint files that caused many windows tasks to end with an invalid result. After several tests and several attempts we have managed to detect where the problem was and solve it. Due to this, we have implemented some of the improvements that we had planned for the checkpoint file. We have made it more robust. We have…
The tasks are coming!
We have finished the work on time and now you visit the new version of the website. We will be updating and adding things.
Today we are also testing a newsletter. You are many people, so it still takes a while to reach you (more than 3000 e-mails sent now).
We are going to go little by little to verify that everything works correctly and to avoid saturating the server.
Thank you so much!
Best,
Jesús.
==============================
¡Las tareas están llegando!
Hemos…
Dear users,
With a little delay compared to our original idea, next Thursday, July 7th, we will relaunch the DENIS project.
Over the next few days we will be updating the website and some features, so it is possible that some things may temporarily malfunction. When all the modifications have been completed we will notify you. If you see a bug before that warning, don't worry about what might go wrong.
However, if something generates doubts, you can ask us in the forums.
Thank you all for your…
Dear volunteers,
After this second phase of testing and with version 7, the results are as expected. We want to review some small detail in case we can reduce the number of errors that occur in clients. Currently they are in less than 0.5% of the cases and we believe that it is mostly due to situations in the client, but if we see options for improvement, we will do it.
With these results, we are ready to move on to the next phase, so we will be working on it for two or three weeks. We are…
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