[parsec-users] Please dont send mail to pradheepkumark at gmail.com.

Christian A Bienia cbienia at CS.Princeton.EDU
Fri Sep 3 14:43:25 EDT 2010


Pradeep,

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Best,
Chris


----- Ursprüngliche Mail -----
Von: "Pradheep Kumar K" <pradheepkumark at gmail.com>
An: parsec-users at lists.cs.princeton.edu
Gesendet: Freitag, 3. September 2010 18:07:05 GMT +01:00 Amsterdam/Berlin/Bern/Rom/Stockholm/Wien
Betreff: [parsec-users] Please dont send mail to pradheepkumark at gmail.com.


Please dont send mail to pradheepkumark at gmail.com . Kindly send the same to pradconf at gmail.com 


Regards, 

K.Pradheep Kumar 
mobile: +919003079697 
email: pradheepkumark at gmail.com 


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Today's Topics: 

1. suitable L2$ size to capture 1st order temporal locality 
(Muhammad abid Mughal) 


---------- Forwarded message ---------- 
From: Muhammad abid Mughal < mabidm_pieas at yahoo.com > 
To: Parsec group < parsec-users at lists.cs.princeton.edu > 
Date: Fri, 3 Sep 2010 08:06:32 -0700 (PDT) 
Subject: [parsec-users] suitable L2$ size to capture 1st order temporal locality 



hi , 
Hope you GUYS doing good.I am running some simulations with 8-node distributed memory system,with different L2$ size,to measure suitable L2$ size which can capture 1st order temporal locality (working set 1) .I am using "off-chip read misses per 1000 instructions" to measure it.In your paper titled "The PARSEC Benchmark Suite: Characterization and Architectural Implications" you show working set1 and working set2 for "simlarge" input set.I am using "simsmall" dataset so definitely these working sets would be smaller.But how do i know that this L2$ size has captured 1st order temporal locality or 2n order(i.e. working set2).I must know the data structure and its size being used by parsec workload.. Is there anyway to get such kind of information without going through code?(because i am not a programmer). 
For "simsmall" I think 8MB L2$ is enough to capture 1st order temporal locality of PARSEC . 


My system parameters and results are: 
************************************************************************* 

Input: "simsmall" 
Node : L1 I/D cache: 64KB each;L2 Cache: 1/2/4/8 MB;one processor/chip 
System: 8-node distributed shared memory system 
Total memory: 4GB 
Task : Measuring off-chip read misses per 1000 instructions to know the suitable size of L2$. 
profilingfiles1MBL2: Profiling files related to L2$=1MB 
profilingfiles2MBL2: Profiling files related to L2$=2MB 
profilingfiles4MBL2: Profiling files related to L2$=4MB 
profilingfiles8MBL2: Profiling files related to L2$=8MB 


For each workload i just varied the L2$ size and measured "off-chip read misses per 1000 instructions". 
The results are given below 


./profilingfiles1MBL2/freqmine-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0260005 
./profilingfiles2MBL2/freqmine-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0258792 
./profilingfiles4MBL2/freqmine-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0258433 
/profilingfiles8MBL2/freqmine-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0258328 




./profilingfiles1MBL2/bodytrack-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0752952 
./profilingfiles2MBL2/bodytrack-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0762126 
./profilingfiles4MBL2/bodytrack-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.075893 
./profilingfiles8MBL2/bodytrack-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0750404 




./profilingfiles1MBL2/canneal-simsmall.profile:Off-chip_readmisses_per_1000_insts 2.3342 
./profilingfiles2MBL2/canneal-simsmall.profile:Off-chip_readmisses_per_1000_insts 2.29017 
./profilingfiles4MBL2/canneal-simsmall.profile:Off-chip_readmisses_per_1000_insts 2.28839 
./profilingfiles8MBL2/canneal-simsmall.profile:Off-chip_readmisses_per_1000_insts 2.22812 




./profilingfiles1MBL2/vips-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.715399 
./profilingfiles2MBL2/vips-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.676205 
./profilingfiles4MBL2/vips-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.697383 
./profilingfiles8MBL2/vips-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.64845 




./profilingfiles1MBL2/fluidanimate-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.135831 
./profilingfiles2MBL2/fluidanimate-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.135771 
./profilingfiles4MBL2/fluidanimate-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.135985 
./profilingfiles8MBL2/fluidanimate-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.135115 




./profilingfiles1MBL2/dedup-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0616364 
./profilingfiles2MBL2/dedup-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0693683 
./profilingfiles4MBL2/dedup-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.338068 
./profilingfiles8MBL2/dedup-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0652708 




./profilingfiles1MBL2/blackscholes-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.846945 
./profilingfiles2MBL2/blackscholes-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.814208 
./profilingfiles4MBL2/blackscholes-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.791456 
./profilingfiles8MBL2/blackscholes-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.818974 




./profilingfiles1MBL2/facesim-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.347814 
./profilingfiles2MBL2/facesim-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.348019 
./profilingfiles4MBL2/facesim-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.294693 
./profilingfiles8MBL2/facesim-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.292923 




./profilingfiles1MBL2/x264-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0280423 
./profilingfiles2MBL2/x264-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0284851 
./profilingfiles4MBL2/x264-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0284456 
./profilingfiles8MBL2/x264-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0288943 




./profilingfiles1MBL2/ferret-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.268492 
./profilingfiles2MBL2/ferret-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.271471 
./profilingfiles4MBL2/ferret-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.267186 
./profilingfiles8MBL2/ferret-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.210023 




./profilingfiles1MBL2/streamcluster-simsmall.profile:Off-chip_readmisses_per_1000_insts 7.084 
./profilingfiles2MBL2/streamcluster-simsmall.profile:Off-chip_readmisses_per_1000_insts 6.86997 
./profilingfiles4MBL2/streamcluster-simsmall.profile:Off-chip_readmisses_per_1000_insts 6.68449 
./profilingfiles8MBL2/streamcluster-simsmall.profile:Off-chip_readmisses_per_1000_insts 6.48975 




./profilingfiles1MBL2/swaptions-simsmall.profile:Off-chip_readmisses_per_1000_insts 1.56026 
./profilingfiles2MBL2/swaptions-simsmall.profile:Off-chip_readmisses_per_1000_insts 1.29674 
./profilingfiles4MBL2/swaptions-simsmall.profile:Off-chip_readmisses_per_1000_insts 1.60086 
./profilingfiles8MBL2/swaptions-simsmall.profile:Off-chip_readmisses_per_1000_insts 1.72674 




./profilingfiles1MBL2/raytrace-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0721749 
./profilingfiles2MBL2/raytrace-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0763548 
./profilingfiles4MBL2/raytrace-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0768016 
./profilingfiles8MBL2/raytrace-simsmall.profile:Off-chip_readmisses_per_1000_insts 0.0746796 


****************************************************************************** 


As we can see , there is a very small change in "Off-chip_readmisses_per_1000_insts" when we vary L2$ size from 1MB to 8MB. 




Hoping someone will give a prompt response. 




Regards, 
Muhammad abid 


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