[parsec-users] Dedup, Memory allocation failed

Christian Bienia cbienia at CS.Princeton.EDU
Sun Jul 25 12:51:08 EDT 2010



Dedup simply needs a lot of memory. I'm working on a more efficient version
but for now you should expect to provide a lot of memory. 8 GB works for me.


We will provide a completely overworked version of dedup with PARSEC 3.0.
It'll have a lot of features to make the program more efficient. However,
it's currently not finished.


- Chris



From: parsec-users-bounces at lists.cs.princeton.edu
[mailto:parsec-users-bounces at lists.cs.princeton.edu] On Behalf Of Joel
Sent: Sunday, July 25, 2010 12:37 PM
To: PARSEC Users
Subject: Re: [parsec-users] Dedup, Memory allocation failed



  Are you compiling this for x86_64 perchance?  If so, I am seeing the same
error when running dedup in the M5 simulator under X86_FS, so I can confirm
the bug.

  Any ideas what it is?  Which memory allocation in the program?





2010/7/25 Mahmood Naderan <nt_mahmood at yahoo.com>

Hi all,

For Dedup, I get a memory error for all of the data sets. Here is an


bash-3.00# ./dedup  -i hamlet.dat -o hamlet.out -t 1
PARSEC Benchmark Suite Version 2.1
[HOOKS] PARSEC Hooks Version 1.2
[HOOKS] Entering ROI
[DataProcess] Memory allocation failed.
bash-3.00# vmstat
 kthr      memory            page            disk          faults      cpu
 r b w   swap  free  re  mf pi po fr de sr s0 s1 s6 --   in   sy   cs us sy
 1 0 0 1131968 843504 92 340 174 2 2  0 21  4 28 205 0  739 5175 1531 64 35

I increased the memory from 512MB to 1GB and still get the same error.



// Naderan *Mahmood;


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  Joel Hestness
  PhD Student, Computer Architecture
  Dept. of Computer Science, University of Texas - Austin

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