CEOs Blog

January 16, 2017

Git Http(s): Proxy setting

Filed under: Uncategorized — admin @ 3:41 pm

Command to use:

git config –global http.proxy http://proxyuser:proxypwd@proxy.server.com:8080
change proxyuser to your proxy user
change proxypwd to your proxy password
change proxy.server.com to the URL of your proxy server
change 8080 to the proxy port configured on your proxy server
If you decide at any time to reset this proxy and work without proxy:

Command to use:

git config –global –unset http.proxy
Finally, to check the currently set proxy:

git config –global –get http.proxy

December 26, 2016

By-passing NUMAlink security

Filed under: Uncategorized — admin @ 8:47 pm

There was a time that certain types of equipment had extreme export controls. Defence categorized certain equipment as threat to national security if it was in the wrong hands. Some equipment such as what is required to run a small reactor was illegal to export and had hardware chip level security to prevent configurations appearing in parts of the world that was not desired.

In super computing systems the architecture that was all the rage for a few years in the 1990s was the hyper cube.

The top500.org web site lists almost everything these days as a variation of crossbar switch.

One variation of crossbar switch is cache coherent Nonuniform Universal Memory Access or “ccNUMA”.

The crossbar functionality a “r-brick” is very similar to that of a NUMALink module. However the export restrictions meant that configuring these type of systems had chip level security that made life difficult.

Using unsupported configurations required either a work around using a L2 controller or better yet hardware hacking and replacing chips.

You would get an error message like:

Actions getting around this

L1001231-001-L2>ver
L2 version: 1.36.0
L1001231-001-L2>serial
L2 system serial number: L1001231.
L1001231-001-L2>



L1001231-001-L2>1.25 l1
entering L1 mode 001r25,  to escape to L2

001r25-L1>ver
L1 1.40.4 (Image B), Built 09/29/2005 13:42:59    [Base 1MB image]
001r25-L1>serial all

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         L1001241
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        MHR829
Reference Brick Serial Number   NVRAM         MHR829


EEPROM      Product Name    Serial         Part Number           Rev  T/W   
----------  --------------  -------------  --------------------  ---  ------
POWER       RPWR            MHR829         030_1631_002          E    00   
LOGIC       ROUTER          LGP402         030_1634_002          B    00   

001r25-L1>




L1001231-001-L2>reboot_l2   
will reboot in 5 seconds...
INIT: Switching to runlevel: 6
Sending processes the TERM signal
Restartinÿ

Validating L2 Controller Flash image....OK
Booting...


Ethernet address from Motorola VPD EEPROM is 08:00:69:11:B1:77

Linux/PPC load:
Uncompressing Linux...done.
Now booting the kernel
Linux version 2.4.7-sgil2 (dsd@tstorm) (gcc version 2.95.2 19991030 (2.95.3 prerelease/franzo)) #1 Mon Feb 28 14:51:03 CST 2005
On node 0 totalpages: 4096
zone(0): 4096 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/ram panic=5
Decrementer Frequency = 187500000/60
Calibrating delay loop... 49.76 BogoMIPS
Memory: 11904k available (952k kernel code, 512k data, 180k init, 0k highmem)
Dentry-cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode-cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
POSIX conformance testing by UNIFIX
PCI: Probing PCI hardware
I/O resource not set for host bridge 0
Memory resource not set for host bridge 0
PCI: Cannot allocate resource region 0 of PCI bridge 0
PCI: resource is 80000000..7fffffff (100), parent c011c314
PCI:00:04.0: Resource 0: c0000000-c0000fff (f=200)
PCI:00:05.0: Resource 0: c0001000-c0001fff (f=200)
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
i2c-core.o: i2c core module
i2c-dev.o: i2c /dev entries driver module
i2c-core.o: driver i2c-dev dummy driver registered.
i2c-algo-8xx.o: i2c mpc8xx algorithm module
i2c-rpx.o: i2c RPX Lite/MBX module
i2c-dev.o: Registered 'rpx' as minor 0
i2c-core.o: adapter rpx registered as adapter 0.
Console: switching to frame buffer device
fb0:  SGI L2 (SED137x LCD controller) frame buffer device
fb0:  Display panel [mono]: Hantronix HDM3224 (320x240, 4-bit Greyscale)
CPM UART driver version 0.03
ttyS00 at 0x0000 is a SCC
ttyS01 at 0x0100 is a SCC
ttyS02 at 0x0200 is a SCC
ttyS03 at 0x0300 is a SCC
WDT_8xx: Software Watchdog Timer version 0.3, 30 second timeout
block: queued sectors max/low 7810kB/2603kB, 64 slots per queue
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
eth0: FEC ENET Version 0.1, 08:fec: Phy @ 0x0, type 0x78100003
fec: link down
00:fec: 10 Mbps, Half-Duplex
69:11:b1:77
PowerPC realtime clock driver, version 0.1.
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
PCI: Enabling device 00:04.0 (0000 -> 0002)
usb-ohci.c: USB OHCI at membase 0xc2002000, IRQ 8
usb-ohci.c: usb-00:04.0, PCI device 11c1:5802 (Lucent Microelectronics)
usb.c: new USB bus registered, assigned bus number 1
Product: USB OHCI Root Hub
SerialNumber: c2002000
hub.c: USB hub found
hub.c: 2 ports detected
PCI: Enabling device 00:05.0 (0000 -> 0002)
usb-ohci.c: USB OHCI at membase 0xc2004000, IRQ 10
usb-ohci.c: usb-00:05.0, PCI device 11c1:5802 (Lucent Microelectronics)
usb.c: new USB bus registered, assigned bus number 2
Product: USB OHCI Root Hub
SerialNumber: c2004000
hub.c: USB hub found
hub.c: 2 ports detected
usb-ohci.c: v5.2:USB OHCI Host Controller Driver
usb.c: registered new driver sgil1
usb.c: registered new driver sgil1
usb.c: registered new driver sgil1
sgil1.c: SGI L1 controller support registered
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 1024)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: cramfs filesystem found at block 0
RAMDISK: overriding ramdisk block size to 4096 for cramfs filesystem
RAMDISK: Loading 2012 blocks [1 disk] into ram disk... done.
Freeing initrd memory: 2012k freed
VFS: Mounted root (cramfs filesystem).
Freeing unused kernel memory: 180k init
INIT: version 2.77 booting
cp: /rhosts.allow: No such file or directory
Starting DHCP client daemon....
hub.c: USB new device connect on bus1/1, assigned device number 2
Manufacturer: Silicon Graphics, Inc.
Product: SN1 L1 System Controller
SerialNumber: 00000000
sgil1.c: SGI L1 connected, minor: 64 device: 1.2
hub.c: USB new device connect on bus1/2, assigned device number 3
hub.c: USB hub found
hub.c: 7 ports detected
hub.c: USB new device connect on bus1/2/1, assigned device number 4
Manufacturer: Silicon Graphics, Inc.
Product: SN1 L1 System Controller
SerialNumber: 00000000
sgil1.c: SGI L1 connected, minor: 65 device: 1.4
hub.c: USB new device connect on bus1/2/2, assigned device number 5
usb.c: USB device not accepting new address=5 (error=-110)
hub.c: USB new device connect on bus1/2/2, assigned device number 6
usb.c: USB device not accepting new address=6 (error=-110)
hub.c: USB new device connect on bus1/2/4, assigned device number 7
Manufacturer: Silicon Graphics, Inc.
Product: SN1 L1 System Controller
SerialNumber: 00000000
sgil1.c: SGI L1 connected, minor: 66 device: 1.7
hub.c: USB new device connect on bus1/2/5, assigned device number 8
Manufacturer: Silicon Graphics, Inc.
Product: SN1 L1 System Controller
SerialNumber: 00000000
sgil1.c: SGI L1 connected, minor: 67 device: 1.8
dhcpcd[28]: timed out waiting for a valid DHCP server response

INFO: No DHCP server found, starting local DHCP server (to serve L3 clients).
INFO: DHCP: new IP address is 10.17.177.119
INIT: Entering runlevel: 5


SGI L2 Controller
Current L2 version: 1.36.0 (L2 emulator: 1.36.0)
Flashed L2 version: 1.36.0

INFO: opened USB control /dev/sgil1_cs
INFO: opened USB device at b1;p1;d2 (/dev/sgil1_0)
INFO: opened USB device at b1;p2/1;d4 (/dev/sgil1_1)
INFO: opened USB device at b1;p2/4;d7 (/dev/sgil1_2)
INFO: opened USB device at b1;p2/5;d8 (/dev/sgil1_3)
INFO: SMP listening on port: 8001
INFO: attempting connection to localhost:9002

INFO: auto power up appears enabled
INFO: attempting connection to localhost:9002
INFO: auto power up in 30 seconds...
L1001231-001-L2>INFO: Validating connection from 'localhost' (127.0.0.1)
INFO: connection to localhost:9002 established.
INFO: Validating connection from 'localhost' (127.0.0.1)
INFO: connection to localhost:9002 established.
INFO: Connection - sgi (sgi) @ localhost running 'l2flash'.
INFO: Connection - sgi (sgi) @ localhost running 'l2gui'.
INFO: attempting connection to localhost:9002
INFO: Validating connection from 'localhost' (127.0.0.1)
INFO: connection to localhost:9002 established.
INFO: Connection - sgi (sgi) @ localhost running 'l2part'.
INFO: auto power up in 25 seconds...
INFO: auto power up in 20 seconds...
INFO: auto power up in 15 seconds...
INFO: auto power up in 10 seconds...
INFO: auto power up in  5 seconds...
INFO: initiating auto power up.
ERROR: auto power up error.
001r25ERROR: SerNum:System Serial Number mismatch. See log for details.
001c01ERROR: SerNum:System Serial Number mismatch. See log for details.
001c02ERROR: SerNum:System Serial Number mismatch. See log for details.
001c03ERROR: SerNum:System Serial Number mismatch. See log for details.
001c01ERROR: power appears off.
001c02ERROR: power appears off.
001c03ERROR: power appears off.
001r25ERROR: power appears off.

L1001231-001-L2>serial all
001c01:

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         M2001411
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        KJD687
Reference Brick Serial Number   NVRAM         KJD687


EEPROM      Product Name    Serial         Part Number           Rev  T/W   
----------  --------------  -------------  --------------------  ---  ------
NODE        IP45_4CPU       KJD687         030_1797_001          B    00   
IO8         IO8             MHL579         030_1673_003          E    00   

EEPROM     JEDEC-SPD Info           Part Number        Rev  Speed  SGI     
---------- ------------------------ ------------------ ---- ------ --------
DIMM 0     CE0000000000000026051400 M3 46L2820BT1-CA0   0B    8.0  N/A     
DIMM 2     CE000000000000000C7D8000 M3 46L2820DT2-CA0   2D   10.0  N/A     
DIMM 1     7F7FFE000000000012000092 CM2201B             2     8.0  N/A     
DIMM 3     7F7FFE000000000012000151 CM2201B             2     8.0  N/A     

001c02:

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         M2001411
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        MLJ194
Reference Brick Serial Number   NVRAM         MLJ194

EEPROM      Product Name    Serial      Part Number           Rev  T/W   
----------  --------------  ----------  --------------------  ---  ------
NODE        IP45_4CPU       MLJ194      030_1779_001          C    00   
IO8         IO8             MLG164      030_1673_003          F    00   

EEPROM      JEDEC Info                Part Number         Rev  Speed (ns)
----------  ------------------------  ------------------  ---  ----------
DIMM 0      7F7FFE000000000012000145  CM2201B             2     08.0
DIMM 2      7F7FFE000000000012000141  CM2201B             2     08.0
DIMM 1      CE0000000000000026061400  M3 46L2820BT1-CA0   0B    08.0
DIMM 3      CE000000000000000C698000  M3 46L2820DT2-CA0   2D    10.0

001c03:

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         M2100226
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        MJN491
Reference Brick Serial Number   NVRAM         MJN491

EEPROM      Product Name    Serial      Part Number           Rev  T/W   
----------  --------------  ----------  --------------------  ---  ------
NODE        IP45_4CPU       MJN491      030_1728_002          D    00   
IO8         IO8             MHR530      030_1673_003          F    00   

EEPROM      JEDEC Info                Part Number         Rev
----------  ------------------------  ------------------  ---
DIMM 0      10000000000000002E015A00  444BH               2
DIMM 2      100000000000000034015A00  444BH               2
DIMM 1      10000000000000006E005A00  444BH               2
DIMM 3      10000000000000000A015A00  444BH               2

001r25:

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         L1001241
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        MHR829
Reference Brick Serial Number   NVRAM         MHR829


EEPROM      Product Name    Serial         Part Number           Rev  T/W   
----------  --------------  -------------  --------------------  ---  ------
POWER       RPWR            MHR829         030_1631_002          E    00   
LOGIC       ROUTER          LGP402         030_1634_002          B    00   

L1001231-001-L2>
L1001231-001-L2> 1.1 l1     
entering L1 mode 001c01,  to escape to L2

001c01-L1>serial all

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         M2001411
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        KJD687
Reference Brick Serial Number   NVRAM         KJD687


EEPROM      Product Name    Serial         Part Number           Rev  T/W   
----------  --------------  -------------  --------------------  ---  ------
NODE        IP45_4CPU       KJD687         030_1797_001          B    00   
IO8         IO8             MHL579         030_1673_003          E    00   

EEPROM     JEDEC-SPD Info           Part Number        Rev  Speed  SGI     
---------- ------------------------ ------------------ ---- ------ --------
DIMM 0     CE0000000000000026051400 M3 46L2820BT1-CA0   0B    8.0  N/A     
DIMM 2     CE000000000000000C7D8000 M3 46L2820DT2-CA0   2D   10.0  N/A     
DIMM 1     7F7FFE000000000012000092 CM2201B             2     8.0  N/A     
DIMM 3     7F7FFE000000000012000151 CM2201B             2     8.0  N/A     

001c01-L1>ver
L1 1.30.14 (Image B), Built 08/05/2004 11:09:57    [Base 1MB image]
001c01-L1>
L1001231-001-L2>1.2 l1
entering L1 mode 001c02,  to escape to L2

001c02-L1>serial all

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         M2001411
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        MLJ194
Reference Brick Serial Number   NVRAM         MLJ194

EEPROM      Product Name    Serial      Part Number           Rev  T/W   
----------  --------------  ----------  --------------------  ---  ------
NODE        IP45_4CPU       MLJ194      030_1779_001          C    00   
IO8         IO8             MLG164      030_1673_003          F    00   

EEPROM      JEDEC Info                Part Number         Rev  Speed (ns)
----------  ------------------------  ------------------  ---  ----------
DIMM 0      7F7FFE000000000012000145  CM2201B             2     08.0
DIMM 2      7F7FFE000000000012000141  CM2201B             2     08.0
DIMM 1      CE0000000000000026061400  M3 46L2820BT1-CA0   0B    08.0
DIMM 3      CE000000000000000C698000  M3 46L2820DT2-CA0   2D    10.0

001c02-L1>ver
L1 1.12.6 (Image B), Built 04/22/2002 08:13:40    [1MB image]
001c02-L1>

L1001231-001-L2>1.3 l1
entering L1 mode 001c03,  to escape to L2

001c03-L1>serial all

Data                            Location      Value
------------------------------  ------------  --------
Local System Serial Number      NVRAM         M2100226
Reference System Serial Number  Attached L2   L1001231
Local Brick Serial Number       EEPROM        MJN491
Reference Brick Serial Number   NVRAM         MJN491

EEPROM      Product Name    Serial      Part Number           Rev  T/W   
----------  --------------  ----------  --------------------  ---  ------
NODE        IP45_4CPU       MJN491      030_1728_002          D    00   
IO8         IO8             MHR530      030_1673_003          F    00   

EEPROM      JEDEC Info                Part Number         Rev
----------  ------------------------  ------------------  ---
DIMM 0      10000000000000002E015A00  444BH               2
DIMM 2      100000000000000034015A00  444BH               2
DIMM 1      10000000000000006E005A00  444BH               2
DIMM 3      10000000000000000A015A00  444BH               2

001c03-L1>ver
L1 1.8.4 (Image B), Built 10/30/2001 11:47:34    [P1 support]
001c03-L1>

Resolution

You can’t set a serial number with the prefix ‘L’ on an O300

L2 command processor engaged, for console mode.
L1001231-001-L2>1.1 l1
entering L1 mode 001c01, to escape to L2
serial clear
001c01-L1>serial
BSN: KJD687 SSN: L0000000 Time: 06/04/2009 08:14:15 CDT
001c01-L1>
001c01-L1>
001c01-L1>serial clear
001c01-L1>
001c01-L1>
001c01-L1>001c01 INFO: System serial number reassigned to Mxxxxxx from attached L2.

Advice received

You’ll want to get all of your L1s (and PROMs if they’re not) at the same version after you get
everything talking, it’ll save you some headaches in the longrun. I’m at 1.22.4 on everything except
the L2 (which is 1.32.4) and it’s been working flawlessly (and no, it didn’t enable security on my O300s
and I’m still able to do a “serial clear” from the L1 successfully). To be safe though, get them
connected together first.
Oh, btw…the easiest way to get the serials on your O300s in sync is to set the L2 to one they can set
(prefix ‘M’) then do a ‘serial clear’ on each O300…if everything is wired properly it should pick up
the serial from the L2 Controller automagically.

I used Mxxxxxx for L2 and cleared the Origin300s…
The router brick is a no go…
1.25 serial clear
001r25:
INFO: command not supported on bricks that enforce security.
Mxxxxxxx-001-L2>

A really crappy work around…

unplug the USB on the router brick..
Power up the router brick at the back.
push the button on the front
Reconnect the USB cable at the back..
connect to the l1 on the router brick.

flash default a
reboot_l1
escape back to the l2
1.1 reset
1.2 reset
1.3 reset

....and...

***Warning: Board in module 001c01 is missing or disabled
It previously contained a New Type board, barcode laser 0
***Warning: Found a new IP35 board in module 001c03, serial MJN491
Please use the 'update' command from the PROM Monitor to update the inventory
***Warning: Found a new IBRICK board in module 001c03, serial MHR530
Please use the 'update' command from the PROM Monitor to update the inventory
***Warning: Found a new IBRICK board in module 001c03, serial MHR530
Please use the 'update' command from the PROM Monitor to update the inventory
DONE

**** System Configuration and Diagnostics Summary ****
CONFIG:
No. of NODEs enabled = 3
No. of NODEs disabled = 0
No. of CPUs enabled = 12
No. of CPUs disabled = 0
Mem enabled = 12288 MB
Mem disabled = 0 MB
No. of RTRs enabled = 1
No. of RTRs disabled = 0

DIAG RESULTS:
ALL DIAGS PASSED.
**** End System Configuration and Diagnostics Summary ****

System Maintenance Menu

1) Start System
2) Install System Software
3) Run Diagnostics
4) Recover System
5) Enter Command Monitor

Option?

Some Explanation

With mismatching serial numbers, the compute modules and the router brick will not fire up together.

Disconnected (from L2 & USB) the router brick will start. When disconnected it is not mis-matched with anything.

Having started the router brick it is then ok (with the older firmware) to reconnect it.

Because the L1s on the Origin 300 compute modules were started without the router present they don’t know of each others’ existence.

Resetting all the compute modules will cause them to “discover” the r-brick during initialisation and also each other and thus become a single system image.

Further advice:

This all started when I had some problems with my R brick on my O300…the l1 wouldn’t start (was getting the couldn’t contact L1 error on the display). I’d experienced this before when the Dallas chip had either fallen out of it’s socket (usually during shipping) or failed. I borrowed a Dallas chip from a spare fuel motherboard, since they both use the same type (DS1742W-120) and it fixed my issue, but also seemed to yield some additional unexpected fruit:

09/16/10 19:04:54 ** fixing invalid SSN value
09/16/10 19:04:54 ** fixing BSN mismatch
09/16/10 19:04:54 USB0: waiting on open
09/16/10 19:05:53 L1 booting 1.22.4
09/16/10 19:05:55 USB0: waiting on open
09/16/10 19:06:50 L1 booting 1.22.4
09/16/10 19:06:53 USB0: waiting on open
09/16/10 19:07:17 USB0: opened
09/16/10 19:07:17 USB0: registered as remote
09/16/10 19:07:17 USB0: registered for events
09/16/10 19:07:19 INFO: System serial number reassigned to M1000707 from attached L2.

After seeing that, I set out to determine whether or not this could be reproduced, or if my serial number was simply corrupted when my R brick went haywire. I bought another R brick off of ebay and several of the previously mentioned Dallas DS1742W-120 chips from quest components (http://www.questcomp.com).

Here’s the procedure as I followed it: I started by powering up the R brick and making sure it already had a serial number set:

001r27-L1>serial all

Data Location Value
------------------------------ ------------ --------
Local System Serial Number NVRAM L1000362
Reference System Serial Number Attached L2 M1000707
Local Brick Serial Number EEPROM LPR391
Reference Brick Serial Number NVRAM LPR391

As you can see, the Local system serial number and the serial from my L2 controller don’t match.

After noting this, I proceeded to install one of the brand new chips in the router brick and reboot. The brick seemed to come up alright, but I wasn’t sure how to address it from the L2 controller as the rack and brick numbers were now reading as —r— on the display. It didn’t take me long to realize that the old fuel I had sitting in the corner would once again become useful. I pulled the chip out of the R brick, installed it in the fuel motherboard, attached to the fuels L1 serial port on the motherboard, and issued and did the following:

—a—L1>brick rackslot 1 27
brick rack set to 001 (takes effect on next L1 reboot/power cycle)
brick slot set to 27 (takes effect on next L1 reboot/power cycle)
—a—L1>
—a—L1>reboot_l1

SGI SN1 L1 Controller
Firmware Image B: Rev. 1.22.6, Built 08/07/2003 12:56:31

001a27-L1>
001a27-L1>
This set rack and slot numbers on the chip for me, so I then reinstalled it into the R brick and powered it up again with the following results:

Eos-001-L2>1.27 l1
entering L1 mode 001r27, to escape to L2

001r27-L1>log
02/07/06 06:28:15 nvram checksum error - initializing core data.
02/07/06 06:28:15 nvram checksum error - initializing extended data.
02/07/06 06:28:15 nvram checksum error - log pointers invalid, log pointers reset
02/07/06 06:28:15 L1 booting 1.20.6
02/07/06 06:28:15 ** fixing invalid SSN value
02/07/06 06:28:15 ** fixing BSN mismatch
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 L1 booting 1.20.6
01/14/18 13:42:55 ^[ZZ____Z_[_^Z_^^ZZ____Z_[_^_Z_^^Z_____[Z_ZZZ_[ZZ[_^^_[^[_^Z^_[^ZZ_____^▒▒▒▒▒Z_Z[ZZZZ_ZZ_____▒▒▒Z_^Z__[[^_Z_^ZZ_____[ZZ_ZZZ[Z__^_ZZZ[^Z^[[^▒▒▒▒▒ZZ_____[▒▒▒▒_[[^▒_^Z_Z_^ZZ___▒Z__^▒▒▒^^ZZ_____[ZZZZ_[[^[^▒▒1 booting 1.20.6
02/07/06 06:28:15 USB0: waiting[ZZ__^[^02/07/06 06:28:15 L1 booting 1.22.6
02/07/06 06:28:15 PSC: 0x07
02/07/06 06:28:15 Error setting speed on device 3
02/07/06 06:28:15 NVRAM doesn't match EEPROM
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 SMP unregistering events
02/07/06 06:28:15 UNREG: 300083f0 0 4
02/07/06 06:28:15 SMP-R: UART:UART_FRAMING_ERROR
02/07/06 06:28:15 L1 booting 1.22.6
02/07/06 06:28:15 PSC: 0x07
02/07/06 06:28:15 Error setting speed on device 3
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 L1 booting 1.22.6
02/07/06 06:28:15 PSC: 0x07
02/07/06 06:28:15 Error setting speed on device 3
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 L1 booting 1.20.6
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered as remote
02/07/06 06:28:15 USB0: registered for events
02/07/06 06:28:15 INFO: System serial number reassigned to M1000707 from attached L2.
02/07/06 06:28:15 L1 booting 1.20.6
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered as remote
02/07/06 06:28:15 USB0: registered for events
001r27-L1>

And there you have it…from start to finish. Now clearly one doesn’t have to use a fuel to set those parameters on the chip, if you look at the data sheet, it’s quite simple to read/write/and even clear it. The Fuel was just the quickest means to an end that I could think of. If I get bored maybe I’ll build a little device to program these things…or perhaps someone else wants to pick up the torch and run some more?

One further item, you’ll notice in the log that there’s some uninitialized data in there…it’s probably a good idea to load the defaults after you’ve performed this, just to make sure all of the settings start at something reasonable.

DS1742W-120 Chip level work around based on the above advice

Ok, so here’s a simpler way to do it and all you need is a blank/new chip.

Power down your router brick
replace the chip with a new one
power up the router brick and connect it to your l2 controller, making sure that all of your serial numbers are already set how you need them
log into the l2 controller and do a config verbose and find the unit with no rack and slot id assigned like so:

Eos-001-L2>config verbose
L2 192.168.20.15: - 001 (IR 80a8140f, C 00000000) (LOCAL)
L1 192.168.20.15:2:0 - 001c07 (b1;p2/1;d4 /dev/sgil1_2)
L1 192.168.20.15:1:0 - 001c06 (b1;p1;d2 /dev/sgil1_1)
L1 192.168.20.15:4:0 - 001c03 (b1;p2/4;d6 /dev/sgil1_4)
L1 192.168.20.15:3:0 - 001c01 (b1;p2/2;d5 /dev/sgil1_3)
L1 192.168.20.15:0:0 - ---r-- (no rack and slot ID set) (b2;p2/1;d3 /dev/sgil1_0)
L2 Clients:
127.0.0.1: (IR 8aa8140f) sgi (sgi) @ localhost running 'l2part'
127.0.0.1: (IR 86a8140f) sgi (sgi) @ localhost running 'l2gui'
127.0.0.1: (IR 88a8140f) sgi (sgi) @ localhost running 'l2flash'

in the output to the right of the unit with no slot id you’ll notice sgil1_0, the number at the end is the port number, in this case 0
issue the command :portnumber:0 brick rackslot 1 27 (or whatever you want it set to) and then :portnumber:0 reboot_l1 like so:

Eos-001-L2>:0:0 brick rackslot 1 27
000r00:
brick rack set to 001 (takes effect on next L1 reboot/power cycle)
brick slot set to 27 (takes effect on next L1 reboot/power cycle)
Eos-001-L2>:0:0 reboot_l1
Eos-001-L2>INFO: closed connection to 000r00
INFO: opened USB device at b2;p2/1;d4 (/dev/sgil1_5)
Profit!!
Eos-001-L2>1.27 log
001r27:
02/07/06 06:28:15 checksum Error – common header initialized
02/07/06 06:28:15 nvram checksum error – initializing core data.
02/07/06 06:28:15 nvram checksum error – initializing extended data.
02/07/06 06:28:15 nvram checksum error – log pointers invalid, log pointers reset
02/07/06 06:28:15 L1 booting 1.20.6
02/07/06 06:28:15 ** fixing invalid SSN value
02/07/06 06:28:15 ** fixing BSN mismatch
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered as remote
02/07/06 06:28:15 USB0: registered for events
02/07/06 06:28:15 INFO: System serial number reassigned to M1000707 from attached L2.
02/07/06 06:28:15 L1 booting 1.20.6
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered as remote
02/07/06 06:28:15 USB0: registered for events

Confirmation on another system (similar result with unrelated errors and newer L1 firmware version)

02/07/06 06:28:15 checksum Error – common header initialized
02/07/06 06:28:15 nvram checksum error – initializing core data.
02/07/06 06:28:15 nvram checksum error – initializing extended data.
02/07/06 06:28:15 nvram checksum error – log pointers invalid, log pointers reset
02/07/06 06:28:15 L1 booting 1.26.5
02/07/06 06:28:15 ** fixing invalid SSN value
02/07/06 06:28:15 ** fixing BSN mismatch
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered for events
02/07/06 06:28:15 INFO: System serial number reassigned to M1000707 from attached L2.
02/07/06 06:28:15 L1 booting 1.26.5
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered for events
02/07/06 06:28:15 L1 booting 1.26.5
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered for events
02/07/06 06:28:15 USB-R: USB:bus was reset
02/07/06 06:28:15 UNREG: 30004c7c 0 7
02/07/06 06:28:15 USB0: unregistered
02/07/06 06:28:15 USB0-R: IRouter:read failed – read error
02/07/06 06:28:15 USB0: waiting on open
02/07/06 06:28:15 USB0: opened
02/07/06 06:28:15 USB0: registered for events
02/07/06 06:28:15 power up hold (COMMAND)
02/07/06 06:28:15 reset (COMMAND)
02/07/06 06:28:15 power down (COMMAND)

Won a Xeon Phi card from CSU

Filed under: Uncategorized — admin @ 2:25 pm

Got a perfect (100%) score for this course

Out of about 1,000 students I was one of the ten that won a Xeon Phi 60 core (57 cores application usable) card.

Announcement of the result:

I am pleased to advise that you are one of the lucky winners for the Programming on Supercomputers Short course – congratulations!

Cloudcroft was impressed with your work; you can see their comments below:

Loved the aside, some of the best programming utilising the supercomputer and great documentation.

One of the top students. Congratulations on the Phi.

Final Grade: High Distinction

We are planning to make an announcement on the forums, as well as our upcoming newsletter. We would love to let everyone know what a great job you did, however if you would like to remain anonymous we will of course accommodate your preference.

The forum post looked like:

In June, IT Masters, SGI, Cloudcroft and Charles Sturt University worked together to provide the one-of-a-kind Programming on Supercomputers Masterclass. Students gained access to Cloudcroft’s Tulip Trading supercomputer, which is now #15 in the Top 500 Supercomputer list.

Courtesy of Cloudcroft, ten Xeon Phi cards were awarded as prizes to the top performing students in the course. We’re proud to announce the following winners:
Ying Chan
Alex Hindle
Richard Lane
Regan Russell
Jon Harsem
Bruce Wite
James Seagraves
Thomas Cordingley
Carina Ormeño
(The last winner has requested to remain anonymous.)

This was a highly specialised short course that challenged all our students. We thank them for their support and congratulate all who participated as well as our winners.

The most of the course work was Fortran (F90) and C/C++. However the neural-network assignment was to be done in “R” (with R-Studio).

Some example Neural Network code in R:

install.packages('neuralnet')
library("neuralnet")

#Going to create a neural network to perform sqare rooting
#Type ?neuralnet for more information on the neuralnet library

#Generate 50 random numbers uniformly distributed between 0 and 100
#And store them as a dataframe
traininginput <-  as.data.frame(runif(50, min=0, max=100))
trainingoutput <- sqrt(traininginput)

#Column bind the data into one variable
trainingdata <- cbind(traininginput,trainingoutput)
colnames(trainingdata) <- c("Input","Output")

#Train the neural network
#Going to have 10 hidden layers
#Threshold is a numeric value specifying the threshold for the partial
#derivatives of the error function as stopping criteria.
net.sqrt <- neuralnet(Output~Input,trainingdata, hidden=100, threshold=0.01)
print(net.sqrt)

#Plot the neural network
plot(net.sqrt)

#Test the neural network on some training data
testdata <- as.data.frame((1:50)^2) #Generate some squared numbers
net.results <- compute(net.sqrt, testdata) #Run them through the neural network

#Lets see what properties net.sqrt has
ls(net.results)

#Lets see the results
print(net.results$net.result)

#Lets display a better version of the results
cleanoutput <- cbind(testdata,sqrt(testdata),
                     as.data.frame(net.results$net.result))
colnames(cleanoutput) <- c("Input","Expected Output","Neural Net Output")
print(cleanoutput)

Used OpenMP and MPI used OMP_NUM_THREADS to restrict number of threads, using pragmas like:

#pragma omp for reduction(+:sum)
#pragma omp parallel for reduction(+:sum)

Getting OpenMPI environment information:

    procs = omp_get_num_procs();
    nthreads = omp_get_num_threads();
    maxt = omp_get_max_threads();
    inpar = omp_in_parallel();
    dynamic = omp_get_dynamic();
    nested = omp_get_nested();

Example OpenMP reduction code:

#include 
#include 
#include 

int main (int argc, char *argv[]) 
{
int   i, n;
float a[100], b[100], sum; 

/* Some initializations */
n = 100;
for (i=0; i < n; i++)
  a[i] = b[i] = i * 1.0;
sum = 0.0;

#pragma omp parallel for reduction(+:sum)
  for (i=0; i < n; i++)
    sum = sum + (a[i] * b[i]);

printf("   Sum = %f\n",sum);

}

Using the Intel Trace tools with MPI:

Set up networking on FreeDOS 1.2

Filed under: Uncategorized — admin @ 1:39 pm

Using Freedos 1.2 and Virtual box Version 5.1.10 r112026 (Qt5.6.2)

When I installed Freedos, I installed the standard CD image, I got a second disk path D:
I did this:
cd C:\fdos\bin
dir D:\net
C:
rem foreach package in the directory listing I did (each package) becomes each zip file.
fdinstall install d:\net\(each package).zip
fdinstall install d:\net\(each package).zip
fdinstall install d:\net\(each package).zip
….
fdinstall install d:\net\(each package).zip
reboot

To test this I did the following..

I did a wget mySAN\filepath
eg:
wget 192.168.0.171:/unix/algol.txt

… and it just worked.

I have the entire turbo gameworks, turbo pascal, turbo this-or-that toolbox on 5.25″ floppies somewhere.. 😉

December 23, 2016

An intriguing colleague

Filed under: Uncategorized — admin @ 6:32 pm

I worked somewhere, a company, a large stock exchange listed company.

Applying for and securing a job in this company was not difficult. I guess that should have raised a flag immediately. I was brought in to maintain a relatively small list of bugs.

I was interviewed by a developer and a CTO/CIO/IT Manager/whatever title you want.

Now it turns out that much later on I was able to put together the following picture:

The CIO knew nothing about technology but was a ‘people person’, okay not that strange. They lasted about a week.
The developer, engaged in very strange behavior and quit at the end of the contract and then came back as a ‘vendor’: Stood up one day and stated that they were a vendor and not just turning up and doing work like the rest of us. Okay, a little odd, but anyway. Turns out this developer had an ‘offshore team’ in south east Asia, they charged for their own time and the supposed cast of 20 developers. They charged a six figure sum for these offshore developers. Much later I go to a contractors Christmas party and a recruiter informs me that this developer was on $1,000 per day at another organisation at the same time as collecting a wage and charging for this useless offshore team. The project was worse than the original version it was meant to replace, crashed on start up, full of bugs, and was an non-maintainable disaster, the project manager came under fire for the project and this developer walked away with very large amounts of money.

In the meantime, I fixed a few bugs and begged people to test my changes and for someone to review my code.

Selling an EMC VNX 5300 SAN on ebay

Filed under: Uncategorized — admin @ 12:10 pm

*** No disks *** but I think it originally had 64Tb of disk in it.

http://www.ebay.com.au/itm/232175001630?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

Essendon bada app that was never released

Filed under: Uncategorized — admin @ 11:58 am

This was an app that I did in a week in Melbourne.

Completed Unity3D course

Filed under: Uncategorized — admin @ 11:21 am

February 27, 2013

Thank you Nokia

Filed under: Uncategorized — admin @ 8:46 pm

Won a Nokia Lumia 820 from a Windows Phone 8 app entered in a competition.

September 17, 2012

Cricket Score Sheet app released

Filed under: Uncategorized — admin @ 11:18 am

http://itunes.apple.com/us/app/cricket-score-sheet/id560697095?ls=1&mt=8

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