**Next message:**Paul Hsieh: "Stream score submission for Athlon system."**Previous message:**Frank Johnston: "IBM 43P-260 base and T70 base"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

Dear John,

Per your request at SC99, I am enclosing formal STREAM results

for the SX-5. The formal machine name is SX-5/16A

Per the naming below, the digit after the "/" is the number of processors

used in each run. So you have 1, 2, 4, 8, and 16 cpus represented. Remember

that the SX-5 is an SDRAM memory, so it is not directly comparable with the

SX-4 original with SSRAM, but is comparable to the SX-4A which also had

SDRAM but which was never reported.

BTW, I will put this into an HPCWire article in the next few days

unless you want to release it as the keeper of the stream ;)

Best Regards

Philip Tannenbaum

HNSX Supercomputers Inc.

---------------------------------------------

PA24-260C N9312P

----- Original Message -----

Subject: Re: STREAM

*>
*

*> Machine SX5#4 16A 128GB
*

*> Date Dec 7 ,1999
*

*>
*

*> [1] SX-5/1A
*

*> ----------------------------------------------
*

*> Double precision appears to have 16 digits of accuracy
*

*> Assuming 8 bytes per DOUBLE PRECISION word
*

*> ----------------------------------------------
*

*> Array size = 80000000
*

*> Offset = 0
*

*> The total memory requirement is 1831 MB
*

*> You are running each test 10 times
*

*> The *best* time for each test is used
*

*> ----------------------------------------------------
*

*> Your clock granularity/precision appears to be 44 microseconds
*

*> The tests below will each take a time on the order
*

*> of 30108 microseconds
*

*> (= 684 clock ticks)
*

*> Increase the size of the arrays if this shows that
*

*> you are not getting at least 20 clock ticks per test.
*

*> ----------------------------------------------------
*

*> WARNING -- The above is only a rough guideline.
*

*> For best results, please be sure you know the
*

*> precision of your system timer.
*

*> ----------------------------------------------------
*

*> Function Rate (MB/s) RMS time Min time Max time
*

*> Copy: 42544.6479 0.0301 0.0301 0.0302
*

*> Scale: 42546.1651 0.0301 0.0301 0.0301
*

*> Add: 47780.3278 0.0402 0.0402 0.0402
*

*> Triad: 47779.0521 0.0402 0.0402 0.0402
*

*> Sum of a is = 9.226406249984801D+19
*

*> Sum of b is = 1.845281249988019D+19
*

*> Sum of c is = 2.460375000016015D+19
*

*>
*

*>
*

*>
*

*> [2] SX-5/2A
*

*> ----------------------------------------------
*

*> Double precision appears to have 16 digits of accuracy
*

*> Assuming 8 bytes per DOUBLE PRECISION word
*

*> ----------------------------------------------
*

*> Array size = 80000000
*

*> Offset = 0
*

*> The total memory requirement is 1831 MB
*

*> You are running each test 10 times
*

*> The *best* time for each test is used
*

*> ----------------------------------------------------
*

*> Your clock granularity/precision appears to be 44 microseconds
*

*> The tests below will each take a time on the order
*

*> of 15122 microseconds
*

*> (= 344 clock ticks)
*

*> Increase the size of the arrays if this shows that
*

*> you are not getting at least 20 clock ticks per test.
*

*> ----------------------------------------------------
*

*> WARNING -- The above is only a rough guideline.
*

*> For best results, please be sure you know the
*

*> precision of your system timer.
*

*> ----------------------------------------------------
*

*> Function Rate (MB/s) RMS time Min time Max time
*

*> Copy: 84852.6042 0.0151 0.0151 0.0151
*

*> Scale: 84852.6042 0.0151 0.0151 0.0151
*

*> Add: 95351.6151 0.0201 0.0201 0.0201
*

*> Triad: 95327.9119 0.0201 0.0201 0.0202
*

*> Sum of a is = 9.226406249985602D+19
*

*> Sum of b is = 1.845281249991997D+19
*

*> Sum of c is = 2.460375000000000D+19
*

*>
*

*>
*

*>
*

*> [4] SX-5/4A
*

*> ----------------------------------------------
*

*> Double precision appears to have 16 digits of accuracy
*

*> Assuming 8 bytes per DOUBLE PRECISION word
*

*> ----------------------------------------------
*

*> Array size = 80000000
*

*> Offset = 0
*

*> The total memory requirement is 1831 MB
*

*> You are running each test 10 times
*

*> The *best* time for each test is used
*

*> ----------------------------------------------------
*

*> Your clock granularity/precision appears to be 44 microseconds
*

*> The tests below will each take a time on the order
*

*> of 7620 microseconds
*

*> (= 173 clock ticks)
*

*> Increase the size of the arrays if this shows that
*

*> you are not getting at least 20 clock ticks per test.
*

*> ----------------------------------------------------
*

*> WARNING -- The above is only a rough guideline.
*

*> For best results, please be sure you know the
*

*> precision of your system timer.
*

*> ----------------------------------------------------
*

*> Function Rate (MB/s) RMS time Min time Max time
*

*> Copy: 168485.5912 0.0076 0.0076 0.0076
*

*> Scale: 168509.3886 0.0076 0.0076 0.0076
*

*> Add: 189555.2133 0.0101 0.0101 0.0101
*

*> Triad: 189517.2955 0.0101 0.0101 0.0101
*

*> Sum of a is = 9.226406249987201D+19
*

*> Sum of b is = 1.845281249999994D+19
*

*> Sum of c is = 2.460375000000000D+19
*

*>
*

*>
*

*>
*

*> [8] SX-5/8A
*

*> ----------------------------------------------
*

*> Double precision appears to have 16 digits of accuracy
*

*> Assuming 8 bytes per DOUBLE PRECISION word
*

*> ----------------------------------------------
*

*> Array size = 80000000
*

*> Offset = 0
*

*> The total memory requirement is 1831 MB
*

*> You are running each test 10 times
*

*> The *best* time for each test is used
*

*> ----------------------------------------------------
*

*> Your clock granularity/precision appears to be 44 microseconds
*

*> The tests below will each take a time on the order
*

*> of 3869 microseconds
*

*> (= 88 clock ticks)
*

*> Increase the size of the arrays if this shows that
*

*> you are not getting at least 20 clock ticks per test.
*

*> ----------------------------------------------------
*

*> WARNING -- The above is only a rough guideline.
*

*> For best results, please be sure you know the
*

*> precision of your system timer.
*

*> ----------------------------------------------------
*

*> Function Rate (MB/s) RMS time Min time Max time
*

*> Copy: 332551.3578 0.0039 0.0038 0.0039
*

*> Scale: 332551.3578 0.0039 0.0038 0.0039
*

*> Add: 371160.2378 0.0053 0.0052 0.0054
*

*> Triad: 366690.0567 0.0053 0.0052 0.0054
*

*> Sum of a is = 9.226406249990401D+19
*

*> Sum of b is = 1.845281249999999D+19
*

*> Sum of c is = 2.460375000000000D+19
*

*>
*

*>
*

*>
*

*> [16] SX-5/16A
*

*> ----------------------------------------------
*

*> Double precision appears to have 16 digits of accuracy
*

*> Assuming 8 bytes per DOUBLE PRECISION word
*

*> ----------------------------------------------
*

*> Array size = 80000000
*

*> Offset = 0
*

*> The total memory requirement is 1831 MB
*

*> You are running each test 10 times
*

*> The *best* time for each test is used
*

*> ----------------------------------------------------
*

*> Your clock granularity/precision appears to be 45 microseconds
*

*> The tests below will each take a time on the order
*

*> of 2157 microseconds
*

*> (= 48 clock ticks)
*

*> Increase the size of the arrays if this shows that
*

*> you are not getting at least 20 clock ticks per test.
*

*> ----------------------------------------------------
*

*> WARNING -- The above is only a rough guideline.
*

*> For best results, please be sure you know the
*

*> precision of your system timer.
*

*> ----------------------------------------------------
*

*> Function Rate (MB/s) RMS time Min time Max time
*

*> Copy: 607491.8382 0.0021 0.0021 0.0022
*

*> Scale: 590389.7421 0.0022 0.0022 0.0023
*

*> Add: 607411.6518 0.0032 0.0032 0.0033
*

*> Triad: 583069.4479 0.0034 0.0033 0.0034
*

*> Sum of a is = 9.226406249996797D+19
*

*> Sum of b is = 1.845281249999999D+19
*

*> Sum of c is = 2.460374999999999D+19
*

*>
*

*>
*

*>
*

**Next message:**Paul Hsieh: "Stream score submission for Athlon system."**Previous message:**Frank Johnston: "IBM 43P-260 base and T70 base"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

*
This archive was generated by hypermail 2b29
: Tue Apr 18 2000 - 05:23:08 CDT
*