Despite being OC'd to the hilt I'm only getting twice the speed of my "old" GT240's anyone know why. I must admit I was expecting more.

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Basically only 2/3 of the shaders are usable on GTX460s, the GTS450 and other cards with the same architecture, with the current ACEMD based apps. I have no idea if this can ever be fixed, but I suspect it will not be available until a new ACEMD release, if at all. The top end cards (GTX580, 570, 480, 470 and 465) do not suffer from this architecture problem. It only impacts on GPUGrid, not other projects, because only GPUGrid uses the ACEMD program, required for molecular dynamics research.

I think there was too much hope for these cards, including the GTX560 (same architectural flaws). The only benefit over a GTX260-216 is that it uses less electric.

Thanks SK wish I'd known that before. It's one thing after another today. If disappointment were a star sign I would have been born under it.

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Basically only 2/3 of the shaders are usable on GTX460s, the GTS450 and other cards with the same architecture, with the current ACEMD based apps. I have no idea if this can ever be fixed, but I suspect it will not be available until a new ACEMD release, if at all. The top end cards (GTX580, 570, 480, 470 and 465) do not suffer from this architecture problem. It only impacts on GPUGrid, not other projects, because only GPUGrid uses the ACEMD program, required for molecular dynamics research.

I think there was too much hope for these cards, including the GTX560 (same architectural flaws). The only benefit over a GTX260-216 is that it uses less electric.

I received 2 GTX460-SE as a Xmas present. I'm disapporinted in their performance but they were free :) They do run cooler and use less electrons than the other GTX2xx's.
Cheers.

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Basically only 2/3 of the shaders are usable on GTX460s, the GTS450 and other cards with the same architecture, with the current ACEMD based apps. I have no idea if this can ever be fixed, but I suspect it will not be available until a new ACEMD release, if at all. The top end cards (GTX580, 570, 480, 470 and 465) do not suffer from this architecture problem. It only impacts on GPUGrid, not other projects, because only GPUGrid uses the ACEMD program, required for molecular dynamics research.

I think there was too much hope for these cards, including the GTX560 (same architectural flaws). The only benefit over a GTX260-216 is that it uses less electric.

Begs the question as to why the 460 and 560 are 'recommended' on the home page?

Hola: Una cuestión que no veo se comente es referente al rendimiento de la GPU es la PRIORIDAD de PROCESO, en Windows suele ser "Menos de lo Normal" y en Linux (10= Muy Baja).

En Linux pasando de una Prioridad de nivel 10 (que es la asignada automáticamente por GPUGRID) a una nivel 5 (Baja) al aumentar en uso de la GPU, el tiempo de ejecución de por ejemplo IBUCH pasa de 10H a unas 8H aproximadamente (GTX295).
En Windows pasando de "Menos de lo Normal" a "Normal" pasamos de un uso de la GPU del 50-60% al 70-75% con la mejora de tiempos de procesado.

Evidentemente aumenta el consumo y la temperatura. Saludos.

Es:
Hola Carlesa25,
Tiene usted razón. En Linux se puede aumentar el valor "nice". En Windows puede utilizar una herramienta llamada efmer prioridad para aumentar prioritarias para aumentar la prioridad de una tarea.
Sin embargo, si se libera un núcleo de la CPU y el uso swan_sync=0 se hace lo mismo. Los programadores están haciendo algunos cambios. Tendremos que esperar y ver qué efectos tienen estos.

En:
On Linux you can increase the nice value. On Win you can use a tool called efmer priority to increase priority to increase a task's priority.
However, if you free up a CPU core and use swan_sync=0 it does the same thing. The programmers are making some changes. We will have to wait and see what effects these have.

Begs the question as to why the 460 and 560 are 'recommended' on the home page?

It does. The way I see it is that if the card is as good as a GTX260 in terms of performance or a GTX275 in terms of performance per Watt, then it's still a good card. You can't recommend a GTX275 and not a GTX460. A GTX560 should be about 40% faster than a GTX460, so slightly different situation. It's just that the GTX580, GTX570, GTX480, GTX470 and GTX465 are substantially better than the GTX460 in terms of speed here.
I think the categories need to better reflect the situation. Perhaps when the project/task changes are made a rethink will see Highly Recommended, Recommended, Useable, and Not Recommended.

i'm still hoping for the new app that is scheduled for mid february, which should improve performance and usage :)

Hola: Creo que sería interesante que se publicara una estadística de rendimiento "real" tomando como base los tiempos de las tareas realizadas registrados en la cuenta de cada uno, según la GPU usada, en especial las series nuevas GTX500 y 400 y la anterior serie GTX200.

Es una buena guía para la compra de las futuras GPU. Saludos.

Ingles: Hi, I think it would be interesting to publish performance statistics "real" basis of times recorded tasks performed in each account, depending on the GPU used, especially the new GTX500 and 400 series and previous series GTX200.

It is a good guide for the purchase of future GPU. Greetings.

Sí, pero es complicado. Rendimiento GPUGRID depende de otro hardware, el tipo de tareas, aplicaciones, sistemas operativos y controladores de hardware ocasionalmente.

Estos debates son útiles para las compras y la configuración,
Información general de las tarjetas que ejecutar la aplicación GPUGRID
Boinc GPU Tarjeta de comparaciones en GFLOPS
Los mejores configuraciones para GPUGRID


Yes, but it is complicated. GPUGRID performance depends on other hardware, the type of tasks, applications, operating systems and hardware drivers to time.

These threads are useful for purchases and setup,
Overview of cards that run the GPUGRID application
Boinc GPU Card comparisons in GFLOPS
Best configurations for GPUGRID

Basically only 2/3 of the shaders are usable on GTX460s, the GTS450 and other cards with the same architecture, with the current ACEMD based apps. I have no idea if this can ever be fixed, but I suspect it will not be available until a new ACEMD release, if at all. The top end cards (GTX580, 570, 480, 470 and 465) do not suffer from this architecture problem. It only impacts on GPUGrid, not other projects, because only GPUGrid uses the ACEMD program, required for molecular dynamics research.

I think there was too much hope for these cards, including the GTX560 (same architectural flaws). The only benefit over a GTX260-216 is that it uses less electric.

Hi SK
are you sure about 580,480 etc. that they don't have this problem?
i've searched on google:
gtx 480 "low gpu usage"
44,800 results

and

gtx 460 "low gpu usage"
52,400 results

this to me means that people are having the same problem on gtx 480 as I have on the gtx 460.

Yes, quite sure. There are other GPU problems too.
One common GPU problem is downclocking; the GPU reduces it's frequency. This can be seen on many Fermi cards CC2.0 and CC2.1.

my card: gainward gtx 460 768MB
i have another problem :)
i now have 90% constant gpu usage on a task but it causes severe freeze on my computer and i am forced to suspend it.

this is a picture of the gpu task: http://oi56.tinypic.com/8zlj5d.jpg

advices?

i have another problem :)
i now have 90% constant gpu usage on a task but it causes severe freeze on my computer and i am forced to suspend it.

this is a picture of the gpu task: http://oi56.tinypic.com/8zlj5d.jpg

advices?

There's been some talk about it in this thread http://www.gpugrid.net/forum_thread.php?id=2545

You could try to manually adjust the priority of the task or turn off swan_sync. Not sure if that works though because I don't have that problem.

Use this tool to change the priority of acemdlong_6.14_windows_intelx86__cuda31 to "normal", or "below normal". You should put a shortcut of this tool to the start menu's startup folder to make it run at every system start.

thanks to all the users that replied to me in this thread

Basically only 2/3 of the shaders are usable on GTX460s, the GTS450 and other cards with the same architecture, with the current ACEMD based apps. I have no idea if this can ever be fixed, but I suspect it will not be available until a new ACEMD release, if at all. The top end cards (GTX580, 570, 480, 470 and 465) do not suffer from this architecture problem. It only impacts on GPUGrid, not other projects, because only GPUGrid uses the ACEMD program, required for molecular dynamics research.

I think there was too much hope for these cards, including the GTX560 (same architectural flaws). The only benefit over a GTX260-216 is that it uses less electric.

Hi Kevin! It's been a long time since I've checked in and it seems the 2/3 usage problem is unresolved. As you say all other projects are unaffected. Since all my NVidias are GTX 460 it looks like I'm still out of GPUGRID. Won't run GPUs with only 2/3 of the shaders used. Good luck to you all and happy crunching!