PC NEC4.1 PERFORMANCE DATA
The following NEC/PC performance tables are provided for subscribers
to the NEC list interested in benchmarking their PC hardware and
software. These performance tables were compiled over the last three
years or so, first starting with 80486 PCs in 1994. Benchmark data of
newer hardware (e.g., Pentium-II's) has displaced the older data as
time moves on, particularly the older PCs prior to 90-MHz Pentiums.
More recently, compiler performance data has been incorporated (see
tables 11 and 12). Further, benchmark emphasis has shifted from the
small 299-segment test file to the 1200-segment test file (provided by
Jerry Burke) and NEC4.1 code compiled with the DEC Visual Fortran
Compiler (see tables 1, 3, 5 and 6). Some benchmark data is also
provided for the original 299-segment test file to provide continuity
with the older Pentium hardware and Lahey F77 compiled code (see
tables 2 and 4).
Table-1 provides performance data using the 1200-segment test file and
DEC Visual Fortran compiled NEC4.1 code on processors from the 90-MHz
Pentium to the 350-MHz Pentium-II with the PC100 memory bus. This
table also includes the MFLOPS/sec ratings estimated from
(8/3)*N^3/(Matrix Factor Time).
The DEC Visual Fortran Compiler has produced the fastest executing
NEC4.1 code for the Pentium/Pentium-II platforms relative to the other
compilers tested. Table-11 provides a quick review of compiler
performance. Table-12 has more detailed hardware and software
performance data. Note the wide range (factor of 1.5 to 4) of
performance between the older Lahey F77 and DEC VF compilers. Even
the newer Lahey F90 V3.5 compiler falls short of the DEC VF compiler.
Tables 3 and 4 provide performance ratios of the various CPU and
motherboards tested with a reference Intel Neptune chipset 90-MHz
Pentium motherboard. Further, these tables include clock normalized
ratios to better compare the performance of the tested hardware.
There are three cache performance tables (8, 9 and 10) that show the
performance of various Pentium and Pentium-II processors with their L1
and L2 caches enabled and disabled. This provides some guidance on
the relative cache and memory limitations of these systems. Because
of the severe performance degradation with the primary L1 cache
disabled, the test scenario was limited to the 299-segment case to
keep execution times reasonable.
During the past year the Pentium-II has displaced the Pentium-Pro and
Pentium CPU chips. Thus a more modern reference CPU/motherboard is
appropriate. In Table-5 the Gigabyte GA-686LX motherboard with a
266-MHz Pentium-II CPU is used as the new baseline reference. The
Intel "LX" chipset was the first to support 10-nsec SDRAM memory. It
replaced the "KX" (Klamath) chipset that supported the traditional
60-nsec FPM memory. The "LX" chipset performance improvement for the
same 266-MHz CPU speed is clearly shown in this table. Further, this
table includes data on the latest "BX" chipset that supports the
faster PC100 memory bus (that typically uses 7 or 8-nsec SDRAM).
Again, the performance improvement is quite evident. The performance
ratios for the 300 and 1200-segment test cases were used to arrive at
the "effective MHz" speed ratings shown in Table-6. This table
clearly shows that a faster CPU clock speed sometimes does NOT
significantly improve NEC performance due to chipset and memory
bandwidth limitations.
Comments, questions and suggestions may be sent to
laitinen_at_oregon.uoregon.edu.
--Larry, W7JYJ
Table-1. Execution times in seconds for the TEST1200.NEC 1200-segment
NEC input file run in double-precision NEC4.1 on various processors.
NEC4.1 was compiled with the DEC Visual Fortran compiler. The OS is
Windows-NT V4 SP3. The MFLOPS/sec ratings were estimated from
(8/3)*N^3/(Matrix Factor Time), for N > 1000, where N is the number of
segments. This approximation was provided by Jozef. R. Bergervoet for
NEC2. NEC4.1 is believed to behave similarly, but it has not been
verified.
CPU/Motherboard L2 RAM Matrix Matrix Total ESTIMATED
Cache Fill Factor Exec. MFLOPS/sec
1. Pentium-II 350-MHz 512KB 128MB 17.985 76.150 96.078 60.51
Gigabyte GA-686BA pburst 8-ns
2. Pentium-II 333-MHz 512KB 256MB 18.967 92.743 113.814 49.69
Gigabyte GA-686DL2 pburst 10-ns
dual-CPU motherboard
with 1 CPU installed
3. Pentium-II 300-MHz 512KB 128MB 21.101 95.867 119.251 48.07
Gigabyte GA-686LX pburst 10-ns
4. Pentium-II 300-MHz 512KB 96MB 21.251 102.778 126.271 44.83
Dell Dimension pburst ??
XPS D300
5. Pentium-II 266-MHz 512KB 64MB 23.574 104.009 130.107 44.30
Gigabyte GA-686LX pburst 10-ns
6. Pentium-II 266-MHz 512KB 64MB 24.895 119.302 146.972 38.62
Gigabyte GA-686KX pburst 60-ns
FPM
7. Pentium 200-MHz MMX 512KB 64MB 38.205 202.311 244.982 22.78
Gigabyte GA-586HX pburst 60-ns
FPM
8. Pentium 133-MHz 512KB 64MB 66.636 275.587 348.941 16.72
Gigabyte GA-586HX pburst 60-ns
FPM
9. Pentium 133-MHz 256KB 80MB 79.965 307.412 394.998 14.99
Hitachi MX-133T pburst 60-ns
Notebook EDO
10. Pentium 100-MHz 256KB 64MB 89.869 319.900 418.512 14.40
Intel P54C-PCI pburst 60-ns
Neptune FPM
11. Pentium 90-MHz 256KB 64MB 99.333 353.708 462.865 13.03
Intel P54C-PCI pburst 60-ns
Neptune FPM
12. Pentium 90-MHz 256KB 96MB 99.543 354.560 463.757 13.00
Intel P54C-PCI pburst 60-ns
Neptune FPM
Note: Jozef reports that he has observed significant matrix factor time
improvement, in other applications, by using the Intel Math Kernel
Library with the LAPACK linear algebra library. From this he has
deduced that substituting the MKL/LAPACK codes in NEC4.1 may
improve the NEC4.1 matrix factor time by up to 3.7 times. The
Intel MKL routines contain assembly language code optimized for
the Pentium-II CPU/FPU. This implies 225-MFLOPS/sec NEC4.1 DP
performance for the 350-MHz Pentium-II.
Table-2. Execution times in seconds for the TEST299.NEC 299-segment input
file run in double-precision NEC4.1 on various processors. NEC4.1 was
compiled with Lahey Fortran-77 V5.10, an old compiler now obsolete. The OS
is DOS V6.22 with HIMEM and EMM386 memory managers installed.
CPU/Motherboard L2 RAM Matrix Matrix Total
Cache Fill Factor Exec.
1. Pentium-II 350-MHz 512KB 128MB 7.131 1.499 8.775
Gigabyte GA-686BA 8-nsec
2. Pentium-II 333-MHz 512KB 256MB 7.286 1.699 9.629
Gigabyte GA-686DL2 pburst 10-nsec
dual-CPU motherboard SDRAM
with one CPU installed
3. Pentium-II 300-MHz 512KB 64MB 7.785 1.799 9.829
Gigabyte GA-686LX pburst SDRAM
4. Pentium-II 300-MHz 512KB 96MB 7.885 1.844 10.13
Dell Dimension XPS D300 pburst SDRAM
5. Pentium-II 266-MHz 512KB 64MB 8.430 1.944 10.63
Gigabyte GA-686LX pburst SDRAM
6. Pentium-II 266-MHz 512KB 64MB 8.576 2.053 10.93
Gigabyte GA-686KX pburst FPM
7. Pentium 200-MHz MMX 512KB 64MB 8.430 4.342 13.07
Gigabyte 586HX pburst FPM
8. Pentium 200-MHz MMX 512KB 64MB 8.430 4.297 13.13
Asus 430TX pburst ??
9. Pentium-Pro 200-MHz 256KB 128MB 11.12 2.753 14.17
Gateway-2000 CPU ??
10. Pentium-Pro 200-MHz 256KB 64MB 11.53 2.843 14.67
HP Vectra XU 6/200 CPU EDO
11. Pentium 166-MHz MMX 512KB 64MB 9.738 5.087 15.22
Gigabyte 586HX pburst FPM
12. Pentium 166-MHz MMX 256KB 80MB 9.729 5.242 15.37
Hitachi MX-166T Notebook pburst EDO
13. Pentium 166-MHz 512KB 64MB 10.83 6.086 17.36
Gigabyte 586HX pburst FPM
14. Pentium 133-MHz 512KB 32MB 12.63 6.731 20.10
Gigabyte 586HX pburst FPM
15. Pentium 133-MHz 512KB 32MB 12.73 6.986 20.46
Shuttle pburst FPM
16. Pentium 133-MHz 256KB 48MB 12.573 7.286 20.46
Hitachi MX-133T Notebook pburst EDO
17. Pentium 133-MHz 512KB 32MB 12.73 8.530 22.10
Epox pburst FPM
18. Pentium 100-MHz 512KB 64MB 15.86 8.385 24.96
Gigabyte 586HX pburst FPM
19. Pentium 133-MHz none 32MB 15.47 10.97 27.20
Hitachi M-134T NoteBook EDO
20. Pentium 100-MHz 256KB 64MB 16.860 9.629 27.244
Intel Neptune P54C-PCI SRAM FPM
21. Pentium 90-MHz 512KB 64MB 17.61 9.384 27.74
Gigabyte 586HX pburst FPM
22. Pentium 100-MHz 256KB 16MB 18.66 8.685 28.89
Dell Optiplex GXM-5100 ?? EDO
23. Pentium 90-MHz 256KB 16MB 18.80 10.60 30.23
Intel Neptune P54C-PCI SRAM FPM
24. Pentium 100-MHz none 40MB 18.26 11.23 30.29
Hitachi M-100T Notebook EDO
Table-3. Comparison of performance ratios for NEC4.1 on various CPU chip and
and motherboard configurations. Source data is from Table-1 using the
1200-segment TEST1200.NEC input file. The reference is the 90-MHz Pentium
CPU on the Intel Neptune P54C-PCI motherboard with 64-MB 60-nsec FPM parity
RAM.
CPU/Motherboard Clock M-Fill M-Fact Exec Normalized-by-CPU-Clock
Ratio Ratio Ratio Ratio M-Fill M-Fact T-Exec
1. Pentium-II 350-MHz 3.89 5.523 4.645 4.816 1.420 1.194 1.238
Gigabyte GA-686BA
2. Pentium-II 333-MHz 3.70 5.237 3.814 4.065 1.415 1.031 1.099
Gigabyte GA-686DL2
dual-CPU motherboard
with 1 CPU installed
3. Pentium-II 300-MHz 3.33 4.708 3.690 3.880 1.412 1.107 1.164
Gigabyte GA-686LX
4. Pentium-II 300-MHz 3.33 4.674 3.441 3.664 1.402 1.032 1.099
Dell Dimension
XPS D300
5. Pentium-II 266-MHz 2.96 4.214 3.401 3.556 1.424 1.149 1.201
Gigabyte GA-686LX
6. Pentium-II 266-MHz 2.96 3.990 2.965 3.148 1.348 1.002 1.064
Gigabyte GA-686KX
7. Pentium 200-MHz MMX 2.22 2.600 1.748 1.889 1.171 0.788 0.851
Gigabyte GA-586HX
8. Pentium 133-MHz 1.48 1.491 1.283 1.326 1.007 0.867 0.896
Gigabyte GA-586HX
9. Pentium 133-MHz 1.48 1.242 1.151 1.172 0.839 0.777 0.792
Hitachi MX-133T
Notebook
10. Pentium 100-MHz 1.11 1.105 1.106 1.106 0.996 0.996 0.996
Intel P54C-PCI
Neptune
11. Pentium 90-MHz 1.00 1.000 1.000 1.000 1.000 1.000 1.000
Intel P54C-PCI
Neptune (64-MB)
12. Pentium 90-MHz 1.00 0.998 1.002 1.002 0.998 1.002 1.002
Intel P54C-PCI
Neptune (96-MB)
Table-4. Comparison of performance ratios for NEC4.1 on various CPU chip and
motherboard configurations. Source data is from Table-2 using TEST299.NEC.
CPU/Motherboard Clock M-Fill M-Fact Exec Normalized-by-CPU-Clock
Ratio Ratio Ratio Ratio M-Fill M-Fact T-Exec
1. Pentium-II 350-MHz 3.89 2.636 7.071 3.445 0.678 1.818 0.886
Gigabyte GA-686BA
2. Pentium-II 333-MHz 3.7 2.580 6.239 3.139 0.697 1.686 0.848
Gigabyte GA-686DL2
with one CPU
3. Pentium-II 300-MHz 3.33 2.415 5.892 3.075 0.725 1.768 0.923
Gigabyte GA-686LX
4. Pentium-II 300-MHz 3.33 2.384 5.748 2.985 0.715 1.725 0.895
Dell Dim XPS D300
5. Pentium-II 266-MHz 2.96 2.23 5.453 2.844 0.755 1.845 0.963
Gigabyte GA-686LX
6. Pentium-II 266-MHz 2.96 2.192 5.163 2.766 0.742 1.747 0.936
Gigabyte GA-686KX
7. Pentium 200-MHz MMX 2.22 2.230 2.440 2.313 1.004 1.099 1.041
Gigabyte 586HX
8. Pentium 200-MHz MMX 2.22 2.230 2.466 2.303 1.004 1.110 1.036
Asus 430TX
9. Pentium-Pro 200-MHz 2.22 1.691 3.850 2.133 0.761 1.733 0.960
Gateway-2000
10. Pentium-Pro 200-MHz 2.22 1.631 3.728 2.061 0.735 1.679 0.928
HP Vectra XU 6/200
11. Pentium 166-MHz MMX 1.84 1.931 2.084 1.986 1.049 1.132 1.079
Gigabyte 586HX
12. Pentium 166-MHz MMX 1.84 1.932 2.022 1.967 1.048 1.096 1.066
Hitachi MX-166T
Notebook PC
13. Pentium 166-MHz 1.84 1.736 1.742 1.741 0.943 0.947 0.946
Gigabyte 586HX
14. Pentium 133-MHz 1.48 1.489 1.575 1.504 1.006 1.064 1.016
Gigabyte 586HX
15. Pentium 133-MHz 1.48 1.477 1.517 1.478 0.998 1.025 0.998
Shuttle
16. Pentium 133-MHz 1.48 1.495 1.455 1.478 1.012 0.984 1.000
Hitachi MX-133T
Notebook
17. Pentium 133-MHz 1.48 1.477 1.243 1.368 0.998 0.840 0.924
Epox
18. Pentium 100-MHz 1.11 1.186 1.264 1.211 1.067 1.138 1.090
Gigabyte 586HX
19. Pentium 133-MHz 1.48 1.215 0.966 1.111 0.821 0.653 0.751
Hitachi M-134T
Notebook PC
20. Pentium 100-MHz 1.11 1.115 1.101 1.110 1.005 0.992 0.996
Intel Neptune
P54C-PCI
21. Pentium 90-MHz 1.00 1.067 1.130 1.090 1.067 1.130 1.090
Gigabyte 586HX
22. Pentium 100-MHz 1.11 1.008 1.221 1.046 0.907 1.098 0.942
Dell Optiplex
GXM-5100
23. Pentium 90-MHz 1.00 1.000 1.000 1.000 1.000 1.000 1.000
Intel Neptune
P54C-PCI
24. Pentium 100-MHz 1.11 1.030 0.944 0.998 0.927 0.850 0.898
Hitachi M-100T
Notebook PC
Table-5. Performance ratios of the Pentium-II motherboards and CPU chips
for NEC4.1 matrix factorization. This table includes the 300 and 1200-segment
cases. The reference motherboard is the Gigabyte GA-686LX with 266-MHz CPU
chip and 64-MB ECC SDRAM memory. The GA-686BA has 128-MB ECC SDRAM memory.
The GA-686KX has 64-MB of ECC FPM memory. The GA-686DL2 has 256-MB of
ECC SDRAM memory.
PENTIUM-II MOTHER RAM CLOCK MATRIX FACTOR CLOCK NORMALIZED
CPU SPEED BOARD SPEED RATIO RATIO M-FACT RATIO
300-SEG 1200-SEG 300-SEG 1200-SEG
350-MHz GA-686BA 8-ns 1.3138 1.3939 1.3658 1.0610 1.0396
333-MHz GA-686DL2 10-ns 1.250 1.0981 1.1215 0.8785 0.8972
300-MHz GA-686LX 10-ns 1.125 1.0688 1.0849 0.9501 0.9644
300-MHz Dell D300 ?? 1.125 1.0081 1.0120 0.8961 0.8995
266-MHz GA-686LX 10-ns 1.00 1.0000 1.0000 1.0000 1.0000
266-MHz GA-686KX 60-ns 1.00 0.8107 0.8718 0.8107 0.8718
Table-6. Effective MHz ratings of the Pentium-II CPUs and motherboards for
the 300 and 1200-segment matrix factorization tests. The 266-MHz Pentium-II
in a Gigabyte GA-686LX motherboard is the reference. Effective speed
ratings are relative to this reference.
PENTIUM-II MOTHERBOARD RAM EFFECTIVE CPU
CPU CLOCK SPEED CLOCK SPEED (MHz)
300-SEG 1200-SEG
350-MHz GA-686BA 8-ns 371.3 363.8
333-MHz GA-686DL2 10-ns 292.5 298.8
300-MHz GA-686LX 10-ns 284.7 289.0
300-MHz Dell D300 ?? 268.6 269.6
266-MHz GA-686LX 10-ns 266.4 266.4 (ref)
266-MHz GA-686KX 60-ns 216.0 232.2
Table-7. Performance ratios of the Gigabyte motherboards and CPU chips for
NEC4.1 matrix factorization. The reference is the Gigabyte GA-586HX motherboard
with 512KB pipeline burst cache, 64-MB of ECC FPM RAM and Intel 90-MHz Pentium
CPU chip. Source data is from Table-2 using TEST299.NEC.
CPU & SPEED MOTHER PRI L1 CLOCK M-FACT CLOCK NORMALIZED
BOARD CACHE RATIO RATIO M-FACT RATIO
350-MHz Pent-II GA-686BA 32KB 3.89 6.260 1.610
333-MHz Pent-II GA-686DL2 32KB 3.70 5.523 1.493
300-MHz Pent-II GA-686LX 32KB 3.33 5.216 1.565
266-MHz Pent-II GA-686LX 32KB 2.96 4.827 1.631
266-MHz Pent-II GA-686KX 32KB 2.96 4.571 1.544
200-MHz MMX GA-586HX 32KB 2.22 2.161 0.973
166-MHz MMX GA-586HX 32KB 1.84 1.845 1.003
166-MHz GA-586HX 16KB 1.84 1.542 0.838
133-MHz GA-586HX 16KB 1.48 1.394 0.942
100-MHz GA-586HX 16KB 1.11 1.119 1.007
90-MHz GA-586HX 16KB 1.00 1.000 1.000
Table-8. Effects of the CPU L1 (primary) and L2 (secondary) caches on
performance for the Pentium-II 350-MHz CPU on the Gigabyte GA-686BA
motherboard with 128-MB 8-nsec ECC SDRAM. NEC4.1 was compiled with the
Lahey LF77 compiler and the input file was TEST299.NEC. Execution times
are in seconds.
CPU L1 L2 FILL FACTOR TOTAL
on on 7.140 1.490 8.875
on off 7.386 1.890 9.529
off on 213.863 156.622 384.257
off off 213.908 156.568 384.148
Table-9. Effects of the CPU L1 (primary) and L2 (secondary) caches on
performance for the Pentium-II 300-MHz CPU on the Gigabyte GA-686LX
motherboard. NEC4.1 was compiled with the Lahey LF77 compiler and the input
file was TEST299.NEC. Execution times are in seconds.
CPU L1 L2 FILL FACTOR TOTAL
on on 7.785 1.790 9.875
on off 8.285 2.289 10.874
off on 257.059 184.766 458.894
off off 257.113 184.766 458.894
Table-10. Effects of the CPU L1 (primary) and L2 (secondary) caches on
performance for the P-166 MMX and P-166 standard CPUs on the Gigabyte 586HX
motherboard. NEC4.1 was compiled with Lahey F77 and the input data file was
TEST299.NEC. Execution times are in seconds.
CPU L1 L2 FILL FACTOR TOTAL
cache cache MMX STD MMX STD MMX STD
on on 9.74 10.84 5.087 6.086 15.22 17.36
on off 11.03 16.03 8.130 10.62 19.72 27.19
off on 44.76 51.20 30.93 39.66 78.29 93.86
off off 151.38 158.97 107.98 129.63 268.29 298.03
Table-11. Compiler comparisons for 299, 300, 600 and 1200 segments on the
Gigabyte GA-686BA Pentium-II 350-MHz PC with 128-MB 8-nsec ECC SDRAM.
Execution times are in seconds.
INPUT FILE/SEGMENTS COMPILER OS FILL FACTOR TOTAL
TEST299.NEC:
NEC4D300 DEC NT 1.723 0.901 2.904
NEC4D LF90 NT 4.497 1.090 5.687
DNEC4 LF77 DOS 7.131 1.499 8.775
TEST300.NEC:
NEC4D300 DEC NT 1.242 0.891 2.284
NEC4D LF90 NT 2.843 1.099 3.988
DNEC4 LF77 DOS 7.140 1.644 8.975
TEST600.NEC:
NEC4D600 DEC NT 4.676 9.314 14.621
NEC4D LF90 NT 11.028 10.129 21.612
DNEC4 LF77 DOS 28.997 18.759 48.646
TEST1200.NEC:
NEC4D120 DEC NT 17.985 76.150 96.078
NEC4D* LF90 NT 49.346 150.881 203.425
DNEC4* LF77 DOS 112.564 188.263 309.357
*Out of core solutions, MAXMAT=1000. See notes following Table 12.
Table 12. Detailed compiler, motherboard and number of segments test data.
Execution times are in seconds.
COMP/OS MOTHERBOARD CLOCK FILL FACTOR TOTAL
MHz
TEST299.NEC:
NEC4D300 DEC NT GA-686BA 350 1.723 0.901 2.904
NEC4D LF90 NT GA-686BA 350 4.497 1.090 5.687
DNEC4 LF77 DOS GA-686BA 350 7.131 1.499 8.775
NEC4D300 DEC NT GA-686DL2 333 1.793 1.121 3.064
NEC4D LF90 DOS GA-686DL2 333 3.643 1.245 5.142
NEC4D LF90 NT/CP GA-686DL2 333 4.742 1.245 6.132
DNEC4 LF77 DOS GA-686DL2 333 7.331 1.699 9.629
NEC4D300 DEC NT GA-686LX 300 2.003 1.162 3.475
DNEC4 LF77 DOS GA-686LX 300 7.785 1.799 9.829
NEC4D300 DEC NT DELL D300 300 2.013 1.222 3.535
DNEC4 LF77 DOS DELL D300 300 7.885 1.844 10.129
NEC4D300 DEC NT GA-686LX 266 2.243 1.242 3.835
NEC4D LF90 DOS GA-686LX 266 4.987 1.399 6.532
DNEC4 LF77 DOS GA-686LX 266 8.430 1.944 10.629
NEC4D300 DEC NT GA-686KX 266 2.303 1.442 4.126
NEC4D LF90 DOS GA-686KX 266 4.942 1.499 6.686
NEC4D LF90 NT GA-686KX 266 4.987 1.599 6.731
NEC4D LF90 NT/CP GA-686KX 266 6.286 1.544 8.130
DNEC4 LF77 DOS GA-686KX 266 8.630 1.999 10.883
NEC4D300 DEC NT GA-586HX 200 MMX 3.615 2.233 6.159
DNEC4 LF77 DOS GA-586HX 200 MMX 8.376 4.397 13.172
NEC4D300 DEC NT GA-586HX 133 5.958 3.525 10.215
DNEC4 LF77 DOS GA-586HX 133 12.673 6.986 20.358
NEC4D300 DEC NT Neptune 100 7.891 4.336 13.139
DNEC4 LF77 DOS Neptune 100 16.860 9.584 27.244
NEC4D300 DEC NT Neptune 90 8.722 4.797 14.300
DNEC4 LF77 DOS Neptune 90 18.805 10.583 30.287
TEST300.NEC:
NEC4D300 DEC NT GA-686BA 350 1.242 0.891 2.284
NEC4D LF90 NT GA-686BA 350 2.843 1.099 3.988
DNEC4 LF77 DOS GA-686BA 350 7.140 1.644 8.975
NEC4D300 DEC NT GA-686DL2 333 1.362 1.131 2.824
NEC4D LF90 NT GA-686DL2 333 2.989 1.254 4.388
NEC4D LF90 DOS GA-686DL2 333 2.898 2.389 5.487
DNEC4 LF77 DOS GA-686DL2 333 7.286 1.890 9.784
NEC4D300 DEC NT GA-686LX 300 1.442 1.162 3.475
DNEC4 LF77 DOS GA-686LX 300 7.776 1.999 9.984
NEC4D300 DEC NT DELL D300 300 1.452 1.232 2.854
DNEC4 LF77 DOS DELL D300 300 7.885 1.989 10.283
NEC4D300 DEC NT GA-686LX 266 1.642 1.242 3.255
NEC4D LF90 DOS GA-686LX 266 3.343 1.390 4.942
DNEC4 LF77 DOS GA-686LX 266 8.439 2.089 10.774
NEC4D300 DEC NT GA-686KX 266 1.643 1.532 3.375
NEC4D LF90 DOS GA-686KX 266 3.398 1.499 5.087
NEC4D LF90 NT GA-686KX 266 3.443 1.499 5.087
NEC4D LF90 NT/DCP GA-686KX 266 4.896 1.544 6.786
DNEC4 LF77 DOS GA-686KX 266 8.536 2.198 10.983
NEC4D300 DEC NT GA-586HX 200 MMX 2.604 2.293 5.408
DNEC4 LF77 DOS GA-586HX 200 MMX 7.931 4.688 12.972
NEC4D300 DEC NT GA-586HX 133 4.437 3.615 8.602
DNEC4 LF77 DOS GA-586HX 133 11.728 7.086 19.559
NEC4D300 DEC NT Neptune 100 5.869 4.396 10.986
DNEC4 LF77 DOS Neptune 100 15.561 9.729 26.090
NEC4D300 DEC NT Neptune 90 6.540 4.827 12.418
DNEC4 LF77 DOS Neptune 90 17.315 10.729 28.934
TEST600.NEC:
NEC4D600 DEC NT GA-686BA 350 4.676 9.314 14.621
NEC4D LF90 NT GA-686BA 350 11.028 10.129 21.612
DNEC4 LF77 DOS GA-686BA 350 28.997 18.759 48.646
NEC4D600 DEC NT GA-686DL2 333 4.947 11.537 17.155
NEC4D LF90 NT/CP GA-686DL2 333 11.773 11.728 23.955
NEC4D LF90 DOS GA-686DL2 333 11.219 21.711 33.63
DNEC4 LF77 DOS GA-686DL2 333 34.675 42.560 84.975
NEC4D DEC NT GA-686LX 300 5.448 11.847 18.006
DNEC4 LF77 DOS GA-686LX 300 31.486 21.957 54.542
NEC4D600 DEC NT DELL D300 300 5.498 12.688 18.898
DNEC4 LF77 DOS DELL D300 300 32.831 25.454 59.720
NEC4D600 DEC NT GA-686LX 266 6.109 12.878 19.819
NEC4D LF90 DOS GA-686LX 266 13.218 12.827 26.590
DNEC4 LF77 DOS GA-686LX 266 34.684 31.032 68.214
NEC4D600 DEC NT GA-686KX 266 6.299 14.932 22.122
NEC4D LF90 NT GA-686KX 266 13.418 14.326 28.289
NEC4D LF90 DOS GA-686KX 266 13.926 14.317 28.888
NEC4D LF90 NT/CP GA-686KX 266 19.059 14.871 34.475
DNEC4 LF77 DOS GA-686KX 266 35.374 27.589 64.117
NEC4D600 DEC NT GA-586HX 200 MMX 9.764 22.372 33.469
DNEC4 LF77 DOS GA-586HX 200 MMX 33.884 45.649 83.676
NEC4D600 DEC NT GA-586HX 133 18.657 33.838 54.478
DNEC4 LF77 DOS GA-586HX 133 50.045 66.860 121.094
NEC4D600 DEC NT Neptune 100 22.492 39.047 64.152
DNEC4 LF77 DOS Neptune 100 64.662 85.074 157.467
NEC4D600 DEC NT Neptune 90 24.976 43.323 71.132
DNEC4 LF77 DOS Neptune 90 72.093 92.406 172.793
TEST1200.NEC:
NEC4D1200 DEC NT GA-686BA 350 17.985 76.150 96.078
NEC4D* LF90 NT GA-686BA 350 49.346 150.881 203.425
DNEC4* LF77 DOS GA-686BA 350 112.564 188.263 309.357
NEC4D1200 DEC NT GA-686DL2 333 18.967 92.743 113.814
NEC4D* LF90 NT GA-686DL2 333 49.246 156.477 208.621
NEC4D* LF90 DOS GA-686DL2 333 76.145 321.975 415.534
DNEC4* LF77 DOS GA-686DL2 333 134.82 461.837 633.130
NEC4D DEC NT GA-686LX 300 21.101 95.867 119.251
DNEC4* LF77 DOS GA-686LX 300 122.048 214.553 345.621
NEC4D1200 DEC NT DELL D300 300 21.251 102.778 126.271
DNEC4* LF77 DOS DELL D300 300 127.689 253.915 391.088
NEC4D1200 DEC NT GA-686LX 266 23.574 104.009 130.107
NEC4D* LF90 DOS GA-686LX 266 73.001 276.372 358.557
DNEC4* LF77 DOS GA-686LX 266 134.566 247.484 392.533
NEC4D1200 DEC NT GA-686KX 266 24.895 119.302 146.972
NEC4D* LF90 NT GA-686KX 266 56.386 171.239 231.922
NEC4D* LF90 NT/DCP GA-686KX 266 70.449 228.025 303.815
NEC4D* LF90 DOS GA-686KX 266 70.004 240.498 318.786
DNEC4* LF77 DOS GA-686KX 266 137.109 270.240 418.723
NEC4D1200 DEC NT GA-586HX 200 MMX 38.205 202.311 244.982
DNEC4* LF77 DOS GA-586HX 200 MMX 132.676 433.694 584.875
NEC4D1200 DEC NT GA-586HX 133 66.636 275.587 348.941
DNEC4* LF77 DOS GA-586HX 133 192.551 586.673 800.182
NEC4D1200 DEC NT Neptune 100 89.869 319.900 418.512
DNEC4* LF77 DOS Neptune 100 249.782 756.423 1036.137
NEC4D1200 DEC NT Neptune 90 99.333 353.708 462.865
DNEC4* LF77 DOS Neptune 90 278.770 815.852 1127.598
Notes:
*Out of core solutions, MAXMAT=1000.
LF90 - Lahey Fortran-90 V3.5 with Phar Lap DOS Extender
LF77 - Lahey Fortran-77 V5.10 with Phar Lap DOS Extender
DEC - DEC Visual Fortran-90 Compiler
NT - Windows-NT V4 SP3
NT/CP - Executing NEC4D from NT's command line prompt.
GA-686BA - Gigabyte Pentium-II motherboard with the "BX" chipset,
128-MB 8-nsec ECC SDRAM.
GA-686DL2 - Gigabyte dual-processor PII motherboard equipped with a
single CPU, 256-MB 10-nsec ECC SDRAM.
GA-686LX - Gigabyte PII motherboard, using the "LX" chipset. The
266-MHz tests were with 64-MB and the 300-MHz tests were
with 128-MB, all 10-nsec ECC SDRAM.
GA-686KX - Gigabyte PII motherboard with 64-MB 60-nsec ECC FPM RAM,
using the "KX" chipset.
GA-586HX - Gigabyte Pentium motherboard with 64-MB 60-nsec FPM
ECC/parity RAM, 512-KB secondary pburst cache.
Neptune - Intel Neptune P54C-PCI/Pentium motherboard with 64-MB
60-nsec parity FPM RAM, 256-KB secondary cache.
INPUT DATA FOR TIMING TESTS
David Pinion, P.E., submitted the following TEST299.NEC input file for
the 299 segment tests:
CE CENTER FED HORIZONTAL HALF-WAVE DIPOLE OVER EXCELLENT GROUND.
GW 1,299,-139.,0, 6.,+139.,0, 6., .001,
GE 0,
GN 1,
FR 0,0,0,0, 0.54,
EX 0, 1,150,0,1., 0.,
RP 1, 1, 1,0000, 1.5, 0., 0., 0., 1000.,
EN
Jerry Burke, LLNL, provided the following NEC input file for the
TEST300, TEST600 and TEST1200 tests. Note that for the 600 and 1200
segment tests the parameter 2 in the second GM0 statement becomes 5 and
11, respectively.
CE NEC timing test - 300 segments
GW0,10,0.,0.,0.,0.,0.,1.,.001,
GM0,9,0.,0.,0.,.2,0.,0.,
GM0,2,0.,0.,0.,0.,.2,0.,
GE
EX0,0,5,0,1.,
XQ
EN
Received on Fri Oct 09 1998 - 17:14:24 EDT
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