Thanks Joel, I looked that for comparing the use of each cpu, it seems ok.
Because I am working with cache policies I also need the ipc as a performance
metric, now I know that the ipc I am getting are ok. Thanks again
Rodrigo
Date: Mon, 24 Jun 2013 14:21:57 -0500
From: jthestn...@gmail.com
To: gem5-users@gem5.org
Subject: Re: [gem5-users] Parsec and Alpha
Hi Rodrigo, It is likely that instructions involved with synchronization will
affect the absolute instruction counts on cores that wait for other cores (and
thus, the IPC). A better metric for analyzing the balance of work between
cores is the mix of instructions that they commit (e.g. integer, floating
point, control, etc.). Depending on which core type (atomic, timing, O3,
inorder) you're using in gem5, there are different stats that represent these
values. I'd recommend looking for these different stats in your output.
Joel
On Mon, Jun 24, 2013 at 11:18 AM, Rodrigo Reynolds Ramírez
<rodrigo.r...@hotmail.com> wrote:
Yes, I runned it for the ROI from a checkpoint, I got three sets of statics, I
copy the results for ROI.
Rodrigo
Date: Mon, 24 Jun 2013 21:44:30 +0530
From: biswa....@gmail.com
To: gem5-users@gem5.org
Subject: Re: [gem5-users] Parsec and Alpha
No that's not the case always. Did you run for the ROI?
On Mon, Jun 24, 2013 at 9:35 PM, Rodrigo Reynolds Ramírez
<rodrigo.r...@hotmail.com> wrote:
I think the OS scheduler tries to balance the cpu's load avoiding that ipc
difference.
Rodrigo
Date: Mon, 24 Jun 2013 19:48:55 +0530
From: biswa....@gmail.com
To: gem5-users@gem5.org
Subject: Re: [gem5-users] Parsec and Alpha
why would the ipc be same?
On Mon, Jun 24, 2013 at 7:33 PM, Rodrigo Reynolds Ramírez
<rodrigo.r...@hotmail.com> wrote:
Hello everyone
I am currently working with parsec+alpha, I have executed some tests using the
small inputs using two cpus, is it normal to get a very unbalanced ipc? These
are my results:
Bench / IPC
CPU0
CPU1
blackscholes
1.659
0.338138
bodytrack
0.374274
0.319496
canneal
0.108077
0.529619
dedup
0.585347
0.292882
ferret
0.71402
0.337503
fluidanimate
1.493102
0.297794
freqmine
0.596511
0.305602
streamcluster
0.243343
0.303156
swaptions
0.24285
0.331316
vips
0.280734
0.403565
x264
0.491017
0.314645
For most benchmarks there is a big difference in the ipc between cpus, I would
think the ipc should be almost the same.
I am using the alpha image provided here http://www.cs.utexas.edu/~parsec_m5/,
I am using the memory classic model, checkpoints and the launcher scripts
generated with .rcS Run Script Generator.
Thanks in advance,
Rodrigo
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
--
thanks®ards
BISWABANDAN
http://www.cse.iitm.ac.in/~biswa/
“We might fall down, but we will never lay down. We might not be the
best, but we will beat the best! We might not be at the top, but we
will rise.”
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
--
thanks®ards
BISWABANDAN
http://www.cse.iitm.ac.in/~biswa/
“We might fall down, but we will never lay down. We might not be the
best, but we will beat the best! We might not be at the top, but we
will rise.”
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
--
Joel Hestness
PhD Student, Computer Architecture
Dept. of Computer Science, University of Wisconsin - Madison
http://pages.cs.wisc.edu/~hestness/
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
