[dcmf] [PATCH 2/2] Issue 2632: Use stat64() to determine the true block size for BGL file system.

[Bob Cernohous]

robl at mcs.anl.gov (Robert Latham) wrote on 02/06/2008 03:05:55 PM:

> Mostly for my own notes:  For "upstream" romio, we've found an
> astonishing number of stat variants.  ROMIO needs (but does not have)
> a generalized stat routine that can be called from different places in
> the code.  Also, this blocksize should be tunable with an MPI-IO hint. 
> 

Yes, understand the stat issues.  Since this was BGL specific, we just 
went with stat64() which we knew would work.

We actually discussed a hint and decided not to do it.  We allow the user
to enable/disable this tuning/optimizing code.  But if it is enabled, we
decided that it was important to match the underlying file system 
blocksize. 

Bob Cernohous:  (T/L 553) 253-6093

BobC at us.ibm.com
IBM Rochester, Building 030-2(C335), Department 61L
3605 Hwy 52 North, Rochester,  MN 55901-7829

> Chaos reigns within.
> Reflect, repent, and reboot.
> Order shall return.
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