[gem5-users] parsec3.0 compilation by aarch64-linux-gnu-gcc cross compiler.
I installed aarch64-linux-gnu-gcc cross compiler in my ubuntu system to compile parsec3.0, and I typed the following commands: source ./env.sh parsecmgmt -a build -c gcc-hooks -p blackscholes and I found this compilation result: [PARSEC] Packages to build: parsec.blackscholes [PARSEC] [== Building package parsec.blackscholes [1] ==] [PARSEC] [-- Analyzing package parsec.blackscholes --] [PARSEC] Package parsec.blackscholes already exists, proceeding. [PARSEC] [PARSEC] BIBLIOGRAPHY [PARSEC] [PARSEC] [1] Bienia. Benchmarking Modern Multiprocessors. Ph.D. Thesis, 2011. [PARSEC] [PARSEC] Done. *nb*:I found the binarie in the following path: /parsec-3.0/pkgs/apps/blackscholes/inst/amd64-linux.gcc-hooks/bin/ blackscholes please is this method true? thanks. commerce. ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
[gem5-users] Failed to find stat 'system.bigCluster.clk_domain.clock' and others
Hi all I am currently working on power modeling using gem5 for arm bigLITTLE architecture. I am using the fs_power.py script already found in the gem5 repo but I wanted to change the dummy equations for static and dynamic power to more meaningful equations. The stats I need to do so are all found in stats.txt but when I try to formulate the equations it gives me "failed to find stat" error. I already can use some stats like dcache.overall_misses , dcache.overall_accesses, numCycles,voltage, dtb_walker_cache.overall_misses, icache.overall_misses , icache.overall_accesses. But when it comes to : system.clk_domain.clock,system.bigCluster.cpus0.iew.iewExecutedInsts,system. bigCluster.cpus2.iq.FU_type_0::IntAlu or any other instructions(MULT,DIV) it fails. I kind of have an intuition where the problem is, I went through the documentation of doxygen and all the stats that failed needs to be accessed from a certain object that I dont know. For example the stats::overall_misses should be accessed from BaseCache class and I did so in dcache.overall_misses but for the others I tried to do the same and it failed. Any clue how to be able to access the given stats? It doesn't have to be per core a sum of them will do the same job. Also I tried to do the calculations after the simulation ends using scripts that process data from the stats.txt and that worked, I just want it now to be online during the simulation. Thanks alot! Yara ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
[gem5-users] x86 floating point instruction
Hi, I wrote simple code that does simple floating point multiplication and division operation and from the assembly, I can see there are MULSS and DIVSS instructions. But after I ran the simulation on gem5 and looked at the stat.txt, I can only see the entries in system.cpu.iq.FU_type_0::FloatAdd, where as the entries in FloatMul and FloatDiv remains 0. If I understand correctly, these stats refer to the micro-ops. Does that mean the MULSS and DIVSS instruction are broken down and executed with floating point Add? Thanks ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
Re: [gem5-users] x86 floating point instruction
Thanks Gabe. Yeah it does not impact the program but it's just that the statistic is incorrect. By the way, I applied the patch and stats now shows correct micro-ops entries. Appreciate your help. Thanks again On Wed, May 23, 2018 at 6:51 PM, Gabe Black wrote: > Yep, those microops aren't given a operand class, and so the isa parser is > guessing and making the FloatAddOp. I haven't really tested this beyond > making sure it compiles, but here's a patch that might get this working for > you. > > https://gem5-review.googlesource.com/c/public/gem5/+/10541 > > Gabe > > On Wed, May 23, 2018 at 4:13 PM, Gabe Black wrote: > >> I'm confident they aren't implemented with floating point add. It's >> likely either that the microops are misclassified, or they're unimplemented >> and printing a warning, but the fact that they don't actually do any math >> isn't impacting your program for whatever reason. I'll take a quick look. >> >> Gabe >> >> On Wed, May 23, 2018 at 2:07 PM, Tariq Azmy >> wrote: >> >>> Hi, >>> >>> I wrote simple code that does simple floating point multiplication and >>> division operation and from the assembly, I can see there are MULSS and >>> DIVSS instructions. But after I ran the simulation on gem5 and looked at >>> the stat.txt, I can only see the entries in >>> system.cpu.iq.FU_type_0::FloatAdd, >>> where as the entries in FloatMul and FloatDiv remains 0. >>> >>> If I understand correctly, these stats refer to the micro-ops. Does that >>> mean the MULSS and DIVSS instruction are broken down and executed with >>> floating point Add? >>> >>> Thanks >>> >>> >>> ___ >>> 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 > ___ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
