From: <>
Date: Wed, 3 Aug 2005 20:36:24 +0200 (CEST)

Hi Gerardo,

        I have another few questions related to PROOF:

  1. I wonder if PROOF is clever enough to process the events where the data is local. The place where the data is seems to be quite important. I have tried two different configurations:
  2. All data in the local disk of the master exported through NFS to all slaves (the same path name in all of them). It slows down when I add slaves!!!
  3. The data is distributed through the slaves and all of them export their disk through NFS to all the rest (including the master). The time consumed now is reduced. But still, adding more slaves not always improves the performance.
  4. Mi conclusion is that the NFS is killing the improvement. Is there a way to tell root (for example when building the TDSet) which data file should be analysed in which machine?





| Isidro González Caballero | |
| IFCA (U. Cantabria/CSIC) | |
| Avda. Los Castros s/n | -o- |
| Santander (España) | Tel: +34 942201343 / 699413841 |
Received on Wed Aug 03 2005 - 20:36:29 MEST

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