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Posts by Alessio Susi

1) Message boards : Number crunching : problem with de_nbody tasks never finishing (Message 69877)
Posted 30 May 2020 by Alessio Susi
Post:
How can I set M@H to use the CPU only for N-Body Simulation and GPU for Separation? Maybe with an app_config but I don't know what I have to write.
2) Message boards : Number crunching : Intel Xeon Phi Coprocessor (Message 69364)
Posted 19 Dec 2019 by Alessio Susi
Post:
I just thought that since they have so many cores, they could do more WUs at the same time.
However, thanks for the answers.
3) Message boards : Number crunching : Radeon R9 280X for MilkyWay@Home (Message 69348)
Posted 16 Dec 2019 by Alessio Susi
Post:
Is a Radeon R9 280X useful for MilkyWay@Home? I know they have great FP64 performance and it could be useful for this project.
4) Message boards : Number crunching : Intel Xeon Phi Coprocessor (Message 69318)
Posted 30 Nov 2019 by Alessio Susi
Post:
Do you know if Intel Xeon Phi Coprocessors work with BOINC? A 57 cores 1.1 GHz costs about 200€ and it would be useful with N-Body Simulations.

5) Message boards : Number crunching : anyone running a 2200/2400G? what performance are you getting? (Message 68042)
Posted 18 Jan 2019 by Alessio Susi
Post:
Have you downloaded the latest drivers for your integrated GPU?
6) Message boards : Number crunching : anyone running a 2200/2400G? what performance are you getting? (Message 67915)
Posted 29 Nov 2018 by Alessio Susi
Post:
...just running 1 stick of DDR4-2400 on a 2400G and getting ~60K points per day here


AMD Ryzen processors work better with high-speed RAM (3000 MHz at least). So if you change your 2400 MHz RAM with a 3000 or 3200 MHz one you'll get more points per day.
7) Message boards : Number crunching : New Benchmark Thread - times wanted for any hardware, CPU or GPU, old or new! (Message 67825)
Posted 27 Sep 2018 by Alessio Susi
Post:
http://www.geeks3d.com/20140305/amd-radeon-and-nvidia-geforce-fp32-fp64-gflops-table-computing/

Here you can see the FP32 / FP64 GFlops of many GPUs. I think that GTX Titan and HD7970 are the best option for cost/power.
8) Message boards : Number crunching : Maximum number of task (Message 67659)
Posted 6 Jul 2018 by Alessio Susi
Post:
Thank you 😉
9) Message boards : Number crunching : Maximum number of task (Message 67657)
Posted 6 Jul 2018 by Alessio Susi
Post:
Is there a way to set a maximum number of tasks running simultaneously?
I have a Ryzen 7 1700 (8 cores, 16 threads) set to work with 15 cores but with M@H it uses all cores for CPU tasks, ignoring GPU ones.
10) Message boards : Number crunching : GTX 1080 Ti vs RX 480 (Message 67626)
Posted 25 Jun 2018 by Alessio Susi
Post:
I know that the AMD FirePro S9150 gives 2.5 TFlop in Double Precision operations (with just 235 W TDP). Can it be the best solution for M@H?
11) Message boards : Number crunching : GTX 1080 Ti vs RX 480 (Message 67615)
Posted 21 Jun 2018 by Alessio Susi
Post:
So, a GTX 1080 Ti is useless for this project...
12) Message boards : News : Nbody 1.68 release (Message 67610)
Posted 20 Jun 2018 by Alessio Susi
Post:
If I want to add 2 commands for app_config (max cores number for N-Body and 2 tasks per GPU) I just have to write the 2 commands in the app_config?
13) Message boards : Number crunching : GTX 1080 Ti vs RX 480 (Message 67609)
Posted 20 Jun 2018 by Alessio Susi
Post:
Is it normal that a GTX 1080 Ti (core clock over 2 GHz) takes the same time to complete a task compared to a RX 480 4GB?
I have both in my PC with an AMD Ryzen 7 1700 processor (overclocked to 3.9 GHz). They both take 2 minutes to complete a task.
14) Message boards : News : Nbody 1.68 release (Message 67598)
Posted 13 Jun 2018 by Alessio Susi
Post:
<app_config>
<app>
<name>milkyway_nbody</name>
<max_concurrent>1</max_concurrent>
</app>
<app_version>
<app_name>milkyway_nbody</app_name>
<plan_class>mt</plan_class>
<avg_ncpus>4</avg_ncpus>
</app_version>
</app_config>


Emmmm... What does it mean?

Milkyway@Home: Notice from BOINC
Your app_config.xml file refers to an unknown application 'milkyway_nbody'. Known applications: 'milkyway'
13/06/2018 21:33:13
15) Message boards : Number crunching : Number of cores for N-Body (Message 67597)
Posted 13 Jun 2018 by Alessio Susi
Post:
Emmmm...

Milkyway@Home: Notice from BOINC
Your app_config.xml file refers to an unknown application 'milkyway_nbody'. Known applications: 'milkyway'
13/06/2018 21:33:13
16) Message boards : Number crunching : Number of cores for N-Body (Message 67596)
Posted 13 Jun 2018 by Alessio Susi
Post:
Thank you 😉
17) Message boards : Number crunching : Number of cores for N-Body (Message 67594)
Posted 13 Jun 2018 by Alessio Susi
Post:
Is it possible to choose how much cores to use for N-Body Simulations? I didn't find anything on the forum
18) Message boards : Cafe MilkyWay : MilkyWay@Home "standard" and N-Body Simulations (Message 67398)
Posted 24 Apr 2018 by Alessio Susi
Post:
So an AMD Ryzen 7 processor should be perfect for MilkyWay@Home 😉

(Waiting for new GTX GPUs)
19) Message boards : Cafe MilkyWay : MilkyWay@Home "standard" and N-Body Simulations (Message 66963)
Posted 14 Jan 2018 by Alessio Susi
Post:
Hi. I wanted to know what is the difference between standard and N-Body apps. Thanks.
20) Message boards : Number crunching : Nvidia GTX 1080 Ti vs AMD RX Vega 64 (Message 66762)
Posted 3 Nov 2017 by Alessio Susi
Post:
I can't decide what GPU to buy.

Gigabyte Aorus GTX 1080 Ti Waterforce Extreme Edition
3584 CUDA cores / 1746 MHz
12.5 TFlops

AMD RX Vega 64
4096 Stream Processors / 1546 MHz
12.6 TFlops

Which one is faster for BOINC crunching?


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