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SimonBiggs / mcgpu

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NVIDIA GeForce GTX 760 2048MB GDDR5 #19

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Hallo Andreu,

I would like to ask two question:

1. Is it possible to run mcpgu with the new versions of NVIDIA GeForce like  
GTX 760 2048MB GDDR5  GDDR5?

2. What are the specifications for the Hardware to run the mcgpu?

With best regards 
Ghassan

Original issue reported on code.google.com by ghassan....@gmail.com on 20 Nov 2013 at 1:08

GoogleCodeExporter commented 8 years ago 
Hi Ghassan,

The GeForce GTX 760 is a good choice. I am currently using GTX 780's that are 
very similar.
You will have to compile the code for CUDA Compute Capability 3.0 for optimum 
performance.
I am still using CUDA version 5.0 but possibly the code will work fine with the 
latest version of CUDA.

MC-GPU doesn't have any special hardware requirement, as long as you can 
compile and run the sample codes distributed with the CUDA SDK (openGL is not 
necessary for MC-GPU). 
You will also need enough RAM memory in the CPU and the GPU to allocate the 
data for the simulations, which is typically determined by the size of the 
voxelized geometry file (note that for each voxel the program allocates memory 
for the material number, density, deposited energy and deposited energy 
squared). 2048MB of GPU memory should be enough unless you have a huge 
super-high resolution phantom.

It is also a good idea to have a simple GPU for graphics while you use the good 
GPU for computations, because CUDA has limitations on the computing time for 
GPUs connected to a monitor (you can also turn off the Linux X windows and work 
from the command line).

Best regards!

     Andreu

Original comment by andre...@gmail.com on 20 Nov 2013 at 7:44

GoogleCodeExporter commented 8 years ago 
Hi Andreu,

I have to choose between two graphic cards GeForce and their system 
requirements.

1. the GTX 770 with 2GB  compute capabilty 3.0 and system CPU 16 GB

2.  the GTX 780 with 3GB compute  capabilty 3.5 and CPU system 8 GB.

Is it necessary to choose the  GTX 780 with 3GB compute  capabilty 3.5 for 
running the MCPGU?

Are there any problems to work with CUDA version 5.5? 

Best regards 
Ghassan

Original comment by ghassan....@gmail.com on 27 Nov 2013 at 3:22