Re: [Gems-users] running barnes-hut

[Alaa Alameldeen <alaa@xxxxxxxxxxx>]

Ayse,

It would be great if you help us isolate why this error occurs. Can you tell us 
if it happens in the following scenarios:

- Running Barnes in Simics Only
- Running Barnes in Simics with Ruby loaded but not Opal
- Running Barnes in Simics with Opal loaded but not Ruby
- Running Barnes in Simics with both Ruby and Opal loaded.

Obviously we now know that the error happens in the last case, but it would be 
great if we know if it is a problem associated with Ruby or Opal and not the other.

Thanks.

-Alaa

yilmazer@xxxxxxxxxxx wrote:
> It happens when I run the splash applications with gems, not with simics.
>
> I run simics-2.0.27 version, does it make a difference?
>
> Thans.
> ayse.
>
> Quoting Alaa Alameldeen <alaa@xxxxxxxxxxx>:
>
>
> > Ayse,
> >
> > Does this error occur only when you run with Gems, or does it occur when you
> >
> > just run Barnes in Simics?
> >
> > -Alaa
> >
> > yilmazer@xxxxxxxxxxx wrote:
> >
> > > Below are from the target system console. What can be explanation of
> >
> > synching
> >
> > > os?
> > >
> > > # ./LU -n512 -p8
> > >
> > > Blocked Dense LU Factorization
> > >     512 by 512 Matrix
> > >     8 Processors
> > >     16 by 16 Element Blocks
> > >
> > >
> > > panic: failed to stop cpu4
> > >
> > > panic[cpu0]/thread=2a10007dd40: send mondo timeout (target 0x4) [196984
> >
> > NACK 0
> >
> > > BUSY]
> > >
> > > 000002a10007d5a0 SUNW,UltraSPARC-III+:send_one_mondo+104 (2, a698f397,
> >
> > 1471800,
> >
> > > 146f000, 4000000000000, 300001b1f00)
> > >  %l0-3: 00000000a698f1cd 00000000a698f2e6 0000000000000000
> >
> > 0000000000000001
> >
> > >  %l4-7: 0000000000030178 0000000000000004 0000000000000004
> >
> > 0000002d78cd0690
> >
> > > 000002a10007d650 unix:xt_one_unchecked+f0 (b, 0, 1479f2c, 0, 1, ff)
> > >  %l0-3: 0000000000000000 0000000000000004 0000000000000000
> >
> > 0000000000000004
> >
> > >  %l4-7: 000000000100accc 0000000000010001 00000300024dcd20
> >
> > 000002a10007d708
> >
> > > 000002a10007d750 TS:ts_tick+1e8 (300024ddce0, 116cc18, 1700000, 1700000, 1,
> >
> > 0)
> >
> > >  %l0-3: 00000000014fd400 0000000000000000 0000030001f2d780
> >
> > 0000000000000000
> >
> > >  %l4-7: 000000007fffffff 0000000001000000 0000030002136a40
> >
> > 00000300013ac8c0
> >
> > > 000002a10007d820 genunix:clock_tick+30 (300024ddce0, 1, 20, 3905f, bebc20,
> >
> > c3)
> >
> > >  %l0-3: 000000000118bc04 000003000241a708 0000000000000000
> >
> > 0000000000000002
> >
> > >  %l4-7: 0000000000000001 00000300013ac8c0 0000000001424e30
> >
> > 0000000000000000
> >
> > > 000002a10007d8d0 genunix:clock+51c (300013ac8c0, 3000241a708, 0, 1495400,
> > > 1471800, 1481800)
> > >  %l0-3: 0000030001c58000 00000300024ddce0 0000000000000000
> >
> > 0000000000000000
> >
> > >  %l4-7: 00000000014ed000 0000000000000000 0000000000000000
> >
> > 0000000000000000
> >
> > > 000002a10007d9b0 genunix:cyclic_softint+b0 (1082668, d92, 3, 10, 1,
> > > 30000b78fb0)
> > >  %l0-3: 0000030000a4fed0 0000000000000002 0000030000b78f48
> >
> > 0000000000000001
> >
> > >  %l4-7: 0000030000a4fea8 0000030000a6c880 0000000000000008
> >
> > 0000000000000000
> >
> > > 000002a10007daa0 unix:cbe_level10+8 (0, 10003, 1400000, 2a10007dd40,
> >
> > 200060,
> >
> > > 100be24)
> > >  %l0-3: 0000000000000000 0000000000010000 0000000000000000
> >
> > 0000000000000000
> >
> > >  %l4-7: 0000000000000000 0000000000000000 0000000000000000
> >
> > 0000000000000000
> >
> > > syncing file systems...
> > >
> > >
> > >
> > >
> > >
> > > Quoting yilmazer@xxxxxxxxxxx:
> > >
> > >
> > >
> > > > Thank you Luke.
> > > > But I wonder why it results in operating system synch on target system.
> > > >
> > > > Thanks again.
> > > > ayse.
> > > > Quoting Luke Yen <lyen@xxxxxxxxxxx>:
> > > >
> > > >
> > > >
> > > > > Hi:
> > > > >
> > > > > I have noticed alot of "patches" also on our version of the barnes
> > > > > workload.  However I don't recall seeing the decodeFails messages.  This
> > > > > is displayed whenever Opal cannot properly decode an instruction.  The
> > > > > best way to debug this is to go through the code in Opal where
> > > >
> > > > instructions
> > > >
> > > >
> > > > > are
> > > > > decoded (opal/system/static.C, in the decodeInstructionInfo() function),
> > > > > and track down which switch statements are causing the failures.
> > > > > > From your output this seems to be isolated to a single instruction.
> > > > >
> > > > > FYI decodeFail() gets called whenever the FAIL macro gets invoked
> >
> > inside
> >
> > > > > decodeInstructionInfo().
> > > > >
> > > > >
> > > > > Hope this helps,
> > > > >  Luke
> > > > >
> > > > > On Wed, 1 Jun 2005 yilmazer@xxxxxxxxxxx wrote:
> > > > >
> > > > >
> > > > >
> > > > > > Hello,
> > > > > > When I was running splash benchmarks(fft,lu) first I got the warning
> > > > >
> > > > > messages
> > > > >
> > > > >
> > > > > > below and after that operating system began to sync. What can be the
> > > > >
> > > > > problem?
> > > > >
> > > > >
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > ### statici::decodeFails. line:877. inst=0x737472
> > > > > > 0000 0000 0111 0011:0111 0100 0111 0010
> > > > > > patch  NPC: 0xffffffffff3b3840 0xff3b3840
> > > > > > patch  NPC: 0xffffffffff3b3840 0xff3b3840
> > > > > > patch  NPC: 0xffffffffff3b3840 0xff3b3840
> > > > > > patch  NPC: 0xffffffffff3b3840 0xff3b3840
> > > > > > patch  PC: 0xff104fe8 0x1000400
> > > > > > patch  NPC: 0xff104fec 0x1000404
> > > > > > patch  PC: 0x1000480 0x1000820
> > > > > > patch  NPC: 0x1000484 0x1000824
> > > > > > patch  PC: 0x1000d00 0xf000d294
> > > > > > patch  NPC: 0x1000d04 0xf000d298
> > > > > > patch  PC: 0x1000d00 0xf000d294
> > > > > > patch  NPC: 0x1000d04 0xf000d298
> > > > > > patch  PC: 0x1000d00 0xf000d294
> > > > > > patch  NPC: 0x1000d04 0xf000d298
> > > > > > patch  PC: 0x1000d00 0xf000d294
> > > > > > patch  NPC: 0x1000d04 0xf000d298
> > > > > > patch  PC: 0x1000d00 0xf000d294
> > > > > > patch  NPC: 0x1000d04 0xf000d298
> > > > > > patch  PC: 0x1000d00 0xf000d294
> > > > > > patch  NPC: 0x1000d04 0xf000d298
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > Quoting Mike Marty <mikem@xxxxxxxxxxx>:
> > > > > >
> > > > > >
> > > > > >
> > > > > > > > This looks like an operating system issue. Make sure you have enough
> > > > >
> > > > > locks
> > > > >
> > > > >
> > > > > > > > available specified in your OS. Different systems have different
> > > > >
> > > > > parameters
> > > > >
> > > > >
> > > > > > > to
> > > > > > >
> > > > > > >
> > > > > > > > set, usually in /etc/system, but you might want to check with your
> > > >
> > > > OS
> > > >
> > > >
> > > > > > > reference
> > > > > > >
> > > > > > >
> > > > > > > > manual.
> > > > > > >
> > > > > > > And be sure that it works without Ruby/Opal loaded.
> > > > > > >
> > > > > > > --Mike
> > > > > > >
> > > > > > >
> > > > > > > _______________________________________________
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> > > > > >
> > > > > >
> > > > > >
> > > > > > _______________________________________________
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> > > > >
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