[parsec-users] Errors running Parsec benchmarks in M5

Christian Bienia cbienia at CS.Princeton.EDU
Fri Aug 21 19:24:49 EDT 2009



If I remember correctly facesim automatically reads and writes all inputs
and outputs relative to the current directory. So simply run the program
from whatever directory you want to use. Parsecmgmt does that automatically
for you.


The output of blackscholes looks good, the errors are about what you can be
expected from varying floating-point implementations. Don't worry about ti.
It's normal that fp output varies a little on different outputs because fp
calculations have to round numbers. You can account for that by making a
comparison within a certain tolerance (target value +/- epsilon). Don't
forget to disable error checking for the final workload binary, it's not
supposed to be included for performance measurements.


- Chris



From: parsec-users-bounces at lists.cs.princeton.edu
[mailto:parsec-users-bounces at lists.cs.princeton.edu] On Behalf Of ef
Sent: Friday, August 21, 2009 7:00 PM
To: PARSEC Users
Subject: Re: [parsec-users] Errors running Parsec benchmarks in M5



For facesim the error was silly, the issue is it was looking in the wrong
path for input, from what I can tell you CANNOT set the input directory, do
you know how?

For swaptions I fixed " the unaligned access error" by linking to different
libs which also removed the seg fault. However I am stuck here:

PARSEC Benchmark Suite Version 2.1
Number of Simulations: 5000,  Number of threads: 4 Number of swaptions: 16
Swaption0: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption1: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption2: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption3: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption4: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption5: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption6: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 
Swaption7: [SwaptionPrice: 0.0000234735 StdError: 0.0000083599] 

Thats exactly what happens, I have no clue whats going on.


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