<div>Hi,</div>
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<div>I have several questions about pugh. When I run a 64 cubed single cpu simulation, the cactus run shows</div>
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<div>INFO (CartGrid3D): x=>[0,63] y=>[0,63] z=>[0,63]<br>INFO (PUGH): MPI Evolution on 1 processors<br>INFO (PUGH): 3-dimensional grid functions<br>INFO (PUGH): Size: 64 64 64<br>INFO (PUGH): Processor topology: 1 x 1 x 1
<br>INFO (PUGH): Local load: 262144 [64 x 64 x 64]<br> </div>
<div>Nothing strange. But when I make a mpirun, for example, using 8 cpus (=8 cpu cores),</div>
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<div>INFO (CartGrid3D): x=>[0,63] y=>[0,63] z=>[0,63]<br>INFO (PUGH): MPI Evolution on 8 processors<br>INFO (PUGH): 3-dimensional grid functions<br>INFO (PUGH): Size: 64 64 64<br>INFO (PUGH): Processor topology: 2 x 2 x 2
<br>INFO (PUGH): Local load: 35937 [33 x 33 x 33]<br> </div>
<div>Why is the local load 33x33x33? I think it should be 32x32x32 or 34x34x34 if it includes ghostzones with stencil 1 ? I can get a correct result even with this problem. What does the local load represent?</div>
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<div>In order to look into further, I tried to use CCTK_MyProcs function. But I only get rank 0. In fact I don't know how to display the rank of computing node cpus. I tried "-r[o|e]" option for cactus run but no lucks.
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<div>I'm using 6 node intel dual core (presler 930) cluster. I use Cactus for numerical relativity but I'm a newbie on computational science. I appreciate your kind helps in advance.</div>
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<div>Kim, Hee Il</div>
<div>from Korea</div>
<div><a href="mailto:heeilkim@gmail.com">heeilkim@gmail.com</a></div>
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