Hi all,
I compiled splash2 benchmarks (kernel part exactly ) statically on my own
(x86-64 bit linux machine with 2.6.28-15 kernel and glibc 2.13 ,gcc 4.5.2)
and put them on the disk img file. They got run without errors but results
seems incorrect. Here comes details.
All x86 full system staff (prebuilt kernel and disk file) come from gem5
website without modification, that is, kernel is *
x86_64-vmlinux-2.6.22.9.smp* , disk is *linux-x86.img * and parameter is 4
cores.
kernels/lu/non_contiguous_blocks
Blocked Dense LU Factorization
128 by 128 Matrix
4 Processors
16 by 16 Element Blocks
PROCESS STATISTICS
Total Diagonal Perimeter Interior Barrier
Proc Time Time Time Time Time
0 8000 0 0 0 8000
TIMING INFORMATION
Start time : 1325376004992284
Initialization finish time : 1325376004992284
Overall finish time : 1325376005000284
Total time with initialization : 8000
Total time without initialization : 8000
kernels/fft
FFT with Blocking Transpose
1024 Complex Doubles
4 Processors
65536 Cache lines
16 Byte line size
4096 Bytes per page
PROCESS STATISTICS
Computation Transpose Transpose
Proc Time Time Fraction
0 0 0 -nan
TIMING INFORMATION
Start time : 1325376004992284
Initialization finish time : 1325376004992284
Overall finish time : 1325376004992284
Total time with initialization : 0
Total time without initialization : 0
Overall transpose time : 0
Overall transpose fraction : -nan
kernel/radix
Integer Radix Sort
262144 Keys
4 Processors
Radix = 1024
Max key = 524288
PROCESS STATISTICS
Total Rank Sort
Proc Time Time Time
0 8000 0 8000
TIMING INFORMATION
Start time : 1325376004992284
Initialization finish time : 1325376005024286
Overall finish time : 1325376005032286
Total time with initialization : 40002
Total time without initialization : 8000
As the result shows, none of them seems right because each of them has 0 "
XXX time" and even fft has totally gone bad.
Steve once told me x87 instructions not implemented in gem5 ,so I compiled
SPLASH2 with "-mfpmath=sse". But the binary still has 2 x87 instructions
(from glibc perhaps) and gem5 shows
*warn: instruction 'fnstcw_Mw' unimplemented*
*warn: instruction 'fldcw_Mw' unimplemented*
*
*
warnings every time. I don't know whether it messed the program.
THANK YOU FOR YOUR TIME!
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