General Links:
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Live Information:
- Webcams
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Access:
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Information area:
- Press
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About the systems:
- Cray Y-MP EL (yel)
- Cyber 960 (cy960)
- Cyber 860 (cy860)
- Cyber 830 (phoenix)
- SGI Origin 2000 (o2000)
- CData 4680 (majestix)
- Sun Enterprise 10000 (e10k)
- Cray T3E (t3e)
- NEC SX-4B (sx4b)
- NEC UP4800/675 (siox)
- Cray J916 (uhu)
- Cray J932 (huh)
- Cray C90
- Cray T3D
- Fujitsu VPP300 (vpp)
- Bull DPS 6000
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Documentation:
- Search engine
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- Papers & Talks
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- On German Computers
Pictures:
- General pictures
- Deinstallation of CY830s
- CDC Cyber Boards
- Tours day on Nov 23rd 2002
- Tours day on Nov 29th 2003
- Tours day on Nov 27th 2004
- Picking up a Cray J932
- Acquisition of IPPs Cray J916
- The move
- The renovation
- Vintage computer rooms
- Operating a DEC10
- Screenshots CC545
- Air Conditioning
Hardware Projects
- Cyber Disk Emulator
- MUNIAC Vacuum Tube Computer
Team Members:
- John G. Zabolitzky
- Alexander Mann
- Freddy Meerwaldt
- Wolfgang Stief
In memory of:
- Seymour Cray
- Control Data Corp
- Cray Research
- Cray Computer Corp
- ERA

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The online diary of the Cray-Cyber ProjectGet the current Cray-Cyber activities as a RSS-Feed: http://www.cray-cyber.org/live/newsfeed.rdf |  |
Since the beginning of December 2002, the Cray-Cyber team decided to write
a short diary from time to time containing all the current news, recent
activities and perhaps some pictures.
This is the replacement for the old news page. If you want to see the old news
(pre-December-2002) have a look
here.
Article posted on 17. Nov 07 - 17:08 by FM, last edited on 18. Nov 07 - 20:50 by JGZ Subject: Cray Y-MP EL up again 24x7, CD 4680 every Saturday | |
Dear Cray-Cyber Users,
we are proud to announce that we finally received a replacement Ethernet-Board for our Cray Y-MP EL (if someone of you happens to have another one laying around, please tell us! We urgently need spares).
Because of this we were able to take the Cray Y-MP EL back into operation. From today on this machine will be running again 24x7. All user-accounts as well as our guest account are also available on the Cray. To use the Y-MP EL, choose number 1 (hostname yel) from the Host-Chooser-Menu and log on using your username and password. Regarding the performance, please remember that this machine has Vector-CPUs.
For more information, please see: http://www.cray-cyber.org/systems/yel.php)
Furthermore majestix, our Control Data 4680 is also back in operation every Saturday. Due to a hard disk failure we needed to reinstall EP/IX 2.2.1AA and recompile and port all the layered products. Thanks to Gerard van der Grinten who spent one week here at Cray-Cyber.org and reinstalled majestix and fixed some of the tape drives of the Cyber.
More information about the Control Data 4680: http://www.cray-cyber.org/systems/majestix.php
That means that we now have the following machines in operation:
- Cray Y-MP EL running UNICOS 9 (yel) 24x7
- Cyber 960-32 running NOS and NOS/VE (cy960) - every Saturday
- Sun Enterprise 10000 running Solaris 10 (e10k) - every Saturday
- Control Data 4680 running EP/IX 2.2.1AA - every Saturday.
We are still working on taking the SGI Origin 2000 back into operation and will announce its availability as soon as we are ready.
Have fun using our systems and don't hesitate to ask us if you have any additional questions.
Best Regards,
Your Cray-Cyber-Team |
Article posted on 02. Sep 07 - 19:45 by WS, last edited on 02. Sep 07 - 19:45 by WS Subject: Digitizing microfiches | A vast amount of our documentation is currently located on microfishes. We of course have microfiche reader, so access to this documentation isn't a problem for us. But! Wouldn't it be much more convenient, to have access to all this information electronically? With the PDF viewer of choice? Maybe even with full text retrieval? Well... of course, this would be great! So, we did a first effort this weekend on the way. We startet investigation on a high quality easy to use way of digitizing microfiches. First idea was, to just take high resolution pictures directly of the microfiche reader screen. To surpress interference of the surrounding light, we also did some tests in the dark. Both test series showed useful results, although quite a lot of post processing will be neccessary. We will take another try with a digital SLR, where we can fix focus, aperture and exposure time. This should give nearly the same light and color on each photograph, which makes automated post processing much easier.
Another try was, to use the macro mode of a digicam and backlight the microfiche. So, we created a white drawing with GIMP, turned up brightness of the laptop screen to maximum and put on one fiche on the laptop display. This proofed to not be usable. At least not on a 1024x768 resolution. Besides using a SLR, we'll also trying a modern high resolution scanner (9600x4800 dpi) with backlight addon for scanning slides. |
Article posted on 01. Sep 07 - 16:07 by FM, last edited on 01. Sep 07 - 16:07 by FM Subject: O2000 temporarily unavailable | | The o2000 has some obscure errors when booting. Unfortunately we do not have the IRIX CDs at the hand currently so we have to wait till next weekend in order to boot a single-user-shell on the o2000 and then examine the problem. (Single-User from HDD doesn't even work...) |
Article posted on 25. Apr 07 - 20:20 by JGZ, last edited on 25. Apr 07 - 20:20 by JGZ Subject: switch to SGI o2000 | | We have now switched to the SGI o2000 for permanent operation. This is due to our desire to reduce electricity consumption. After switching off some unused network gear our total consumption with login /www server and o2000 is down to only 2 kW which is really affordable in permanent operation. |
Article posted on 17. Apr 07 - 18:10 by JGZ, last edited on 17. Apr 07 - 18:11 by JGZ Subject: e10k work | | Last week we conducted an actual consumed power measurement of our e10k. This resulted in 6 kW only, quite less than the datasheet value. Since our Cray YMP-EL has a defectve Ethernet board which will take some time to be replaced we put the e10k into permanent service since the 14th of April. Still, this is about twice the power needed by the Cray YMP-EL, so we cannot keep this up for long.
A performance comparison with a Pentium IV at 2.4 GHz (using g77 FORTRAN compiler at maximum optimization) results in slightly higher performance for the 400 MHz Ultrasparc, on a single processor basis. This is probably to a good part due to the less than perfect optimization of the g77 FORTRAN compiler.
In multiprocessor performance we get well around 90% for a nicely parallelizable code.
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Article posted on 18. Mar 07 - 20:08 by FM, last edited on 18. Mar 07 - 20:08 by FM Subject: Enterprise 10000 working again | | After the first day of e10k being online, we noticed that no user-logins were possible anymore. This was my fault, I had a bug in the user-synchronization-software.
Everything should be working fine now and the machine is available for user-logins again. |
Article posted on 17. Feb 07 - 12:09 by FM, last edited on 17. Feb 07 - 12:09 by FM Subject: Enterprise 10000 - 56 CPU Bringup | So now - as the e10k is soon ready for user-logins, here is a little 'bringup'-output:
Trying to get bringup.lock lock... OK
Checking that all other domains are down.... NO
Bringing up domain e10k-pub
Starting: hpost
Opening SNMP server library...
Significant contents of /export/home/ssp/.postrc:
#
logfile
Reading centerplane asics to obtain bus configuration...
Bus configuration determined to be 3F.
phase cplane_isolate: CP domain cluster mask clear...
phase init_reset: Initial system resets...
phase jtag_integ: JTAG probe and integrity test...
phase mem_probe: Memory dimm probe...
phase iom_probe: I/O module type probe...
phase jtag_bbsram: JTAG basic test of bootbus sram...
phase proc1: Initial processor module tests...
phase pc/cic_reg: PC and CIC register tests...
phase dtag: CIC DTAG tests...
phase mem: MC register and memory tests...
phase io: I/O controller tests...
phase procmem2: Processor vs. memory II tests...
phase lbexit: Centerplane connection tests...
phase npb_mem: Non-Proc Board MC and memory tests...
phase npb_iopc: Non-Proc Board IOPC register tests...
phase npb_io: Non-Proc Board I/O controller tests...
phase npb_cplane: Non-Proc Board centerplane connection tests...
phase nmb_procmem2: Non-Mem Board Proc vs. memory II tests...
phase final_config: Final configuration...
Configuring in 3F, FOM = 802816.00: 56 procs, 2 Scards, 57344 MBytes.
Creating OBP handoff structures...
Configured in 3F with 56 processors, 2 Scards, 57344 MBytes memory.
Interconnect frequency is 99.902 MHz, from SNMP MIB.
Processor external frequency is 199.805 MHz, from SNMP MIB.
Processor internal frequency is 399.610 MHz, from proc clk_mode probe.
Boot processor is 1.0 = 4
POST (level=16, verbose=20) execution time 18:50
Boot processor 4 written to /var/opt/SUNWssp/etc/e10k/e10k-pub/bootproc
Updating domain e10k-pub with bootproc 4 domainInstance 1 and interrupt vector MIB... OK
Starting obp_helper -m 4... OK
Starting netcon_server -p 4 ... OK
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Article posted on 13. Jan 07 - 14:40 by WS, last edited on 13. Jan 07 - 14:42 by WS Subject: Webcams back online, talk feature established again | Hello Users! Some of you might have noticed already, that our webcams are up and running again. Freddy did some cheating and hacking with our Xen environment. And voila, we again will provide you with the brightest and most colorful pictures live out of the heart of Cray-Cyber.org.
Further I did some troubleshooting on the missing talk to the operator feature which was broken since switching to the new Xen environment a few weeks back. Cause were some errors in the inetd config file... So, from now on, talk will be enabled again from the telnet login screen to Cray-Cyber.org. |
Article posted on 06. Jan 07 - 23:33 by FM, last edited on 06. Jan 07 - 23:33 by FM Subject: Cyber 830 photos online | We have recently acquired the permission to put some photos of the deinstallation of the Cyber 830's in Mallorca online.
Here they are! |
Article posted on 29. Dec 06 - 20:13 by FM, last edited on 31. Dec 06 - 14:55 by AM Subject: Cyber 830 in Mallorca deinstalled |
Dear readers,
here are the current news from Mallorca! In the last three days we were deinstalling 3 Cyber 830 Computers here. On Dec 27th, we disconnected the Cybers and crawled all the stuff together, yesterday we packed everything into boxes and pallets and the truck, which was ordered for today morning already came yesterday evening. So today, there was still some cleaning-up work to do (such as removing the old channel-cables from the raised floor, etc.). Now we're sitting in the Internet-Pub again and are providing you with the most current information from Mallorca!
Greetings from the island!
John, Alex and Freddy
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 (Click on the image to enlarge) This is the truck almost fully loaded |
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