Benchmarking: CARMA Dev Kit - Linpack

Linkpack

file linpackc.new
for The LINPACK benchmark program done in C (improved version).
lang C
by Based on Bonnie Toy 5/88 but improved by Will Menninger.

wget http://www.netlib.org/benchmark/linpackc.new

Compile

mv linpackc.new linpack.c
gcc -O -o linpack linpack.c -lm

CPU info

cat /proc/cpuinfo

Processor       : ARMv7 Processor rev 9 (v7l)
processor       : 0
BogoMIPS        : 1987.37

processor       : 1
BogoMIPS        : 1987.37

processor       : 2
BogoMIPS        : 1987.37 

processor       : 3
BogoMIPS        : 1987.37 

Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x2
CPU part        : 0xc09
CPU revision    : 9

Hardware        : cardhu
Revision        : 0000
Serial          : 0000000000000000

Mem info

free -m

             total       used       free     shared    buffers     cached
Mem:          1996        996        999          0          6        180
-/+ buffers/cache:        809       1186
Swap:            0          0          0

Results

Double Precision N=200

Enter array size (q to quit) [200]:  200
Memory required:  315K. 


LINPACK benchmark, Double precision.
Machine precision:  15 digits.
Array size 200 X 200.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
      64   0.52  84.62%   3.85%  11.54%  191072.464
      128   1.04  85.58%   1.92%  12.50%  193172.161
     256   2.08  90.87%   3.37%   5.77%  179374.150
     512   4.15  89.16%   3.61%   7.23%  182635.498
    1024   8.31  91.10%   2.89%   6.02%  180063.167
    2048  16.59  89.87%   2.65%   7.47%  183230.402

Double Precision N=1000

Enter array size (q to quit) [200]:  1000
Memory required:  7824K.


LINPACK benchmark, Double precision.
Machine precision:  15 digits.
Array size 1000 X 1000.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
       1   1.93  92.75%   0.52%   6.74%  93148.148
       2   3.18  98.11%   0.63%   1.26%  106794.055
       4   6.34  98.11%   0.63%   1.26%  107135.250
       8  12.67  97.79%   0.95%   1.26%  107220.890

Double Precision N=5000

Enter array size (q to quit) [200]:  5000
Memory required:  195371K.
 

LINPACK benchmark, Double precision.
Machine precision:  15 digits.
Array size 5000 X 5000.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
       1 315.83  99.57%   0.11%   0.32%  66256.896

Single Precision N=200

Enter array size (q to quit) [200]:  200
Memory required:  158K.
 

LINPACK benchmark, Single precision.
Machine precision:  6 digits.
Array size 200 X 200.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
     128   0.84  89.29%   0.00%  10.71%  234382.266
     256   1.69  88.76%   2.96%   8.28%  226821.516
     512   3.38  88.76%   1.48%   9.76%  230539.859
    1024   6.77  88.33%   3.25%   8.42%  226821.500
    2048  13.52  88.17%   2.81%   9.02%  228665.875

Single Precision N=1000

Enter array size (q to quit) [200]:  1000
Memory required:  3914K.


LINPACK benchmark, Single precision.
Machine precision:  6 digits.
Array size 1000 X 1000.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
       1   1.21  89.26%   0.83%   9.92%  153822.609
       2   1.79  97.21%   0.56%   2.23%  191619.047
       4   3.60  97.22%   0.83%   1.94%  189990.734
       8   7.20  97.64%   0.56%   1.81%  189721.844
      16  14.40  97.36%   0.83%   1.81%  189721.844

Single Precision N=5000

Enter array size (q to quit) [200]:  5000
Memory required:  97695K.


LINPACK benchmark, Single precision.
Machine precision:  6 digits.
Array size 5000 X 5000.
Average rolled and unrolled performance:

    Reps Time(s) DGEFA   DGESL  OVERHEAD    KFLOPS
----------------------------------------------------
       1 167.10  99.49%   0.11%   0.39%  125320.430