Perl on a Cray Y-MP EL

Compiling Perl on a Cray is not an easy task, if you only have a few hours every Tuesday. And taking a Cray home, even the little Y-MP EL, is not an option. Neither is letting it run unattended.

The frustrating part is the wait. Unicos does not even have a 'top' command, so ps -efa is your best friend

https://www.behindtheconsole.com/2025/09/17/perl-on-a-cray-y-mp-el/

#VintageComputing #CRAY #CrayYMPEL #datArena #Make #Perl #UniCOS #VintageComputerLab #BTC

cf77

Und wieder eine "neue" alte Sprache gelernt. Fortran77. Ich versuche gerade die Cray Y-MP EL etwas zu kitzeln.

Also mal das Traveling Sales Person Problem mit 23 zufälligen Städten mit asymmetrischen Gewichten testen:

PROGRAM TSP_HEURISTIC
IMPLICIT NONE

INTEGER N
PARAMETER (N = 23)
REAL C(N,N), X(N)

https://www.behindtheconsole.com/2025/06/24/cf77/

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BTC-6 Cray compiles miniperl und etwas SUN

Nach mehreren Anläufen und vielen Stunden sind wir nun endlich an der Stelle ein Miniperl zu besitzen…

Siehe mehr dazu in unserem Beitrag.

https://www.behindtheconsole.com/2025/02/26/btc-6-cray-compiles-miniperl-und-etwas-sun/

#CRAY #CrayYMPEL #Perl #VintageComputerLab #VintageComputing #BTC

Cray Y-MP EL miniperl

After failing last time with a repetitive error and a never-ending story to get Perl 5.6.1 compilation we had a breakthrough with "timing".

The Cray thinks its 1994, but all the files from the tarball are in the future and therefore the compilation hang in a time delusion loop.

A "find . -p

https://www.behindtheconsole.com/2025/02/26/cray-y-mp-el-miniperl/

#VintageComputing #CRAY #CrayYMPEL #Perl #RetroComputing #VintageComputerLab #VintageComputing #BTC

Cray Y-MP EL building things

Short update on our effort to get software running. We were looking for a aptext on the system, but did not find it.

Cray backup to tape, building gcc and searching for aptext

And we tried again to get gcc compiled, which failed again.

We got the first complete backup to the

https://www.behindtheconsole.com/2025/02/15/cray-y-mp-el-building-things/

#VintageComputing #Backup #CRAY #CrayYMPEL #gcc #Perl #VintageComputerLab #VintageComputing #BTC

Backup to /dev/nrpd03

Our Cray Y-MP EL has a Digital Data Storage DAT tape drive hooked to the IOP VMEBus computer and is presented into the UNICOS as /dev/nrpd03.

This is deciphered as no rewind parallel digital data storage.

We first run the DAT cleaning tape and after that we made sure the tape we inserted is at the be

https://www.behindtheconsole.com/2025/02/05/backup-to-dev-nrpd03/

#VintageComputing #CRAY #CrayYMPEL #DAT #DSS #VintageComputerLab #VintageComputing #BTC

Cray Y-MP EL retroperspective

The assembly

We have brought our Cray Y-MP EL from temporary storage into the mainframe area. In our case, the Cray consists of 4 cabinets, actually 2 19″ racks screwed together back-to-back and then the two parts next to each other.

Although it is on castors, it is still no lightweight. Once i

https://www.behindtheconsole.com/2025/01/12/cray-y-mp-el-retroperspective/

#VintageComputing #CRAY #CrayYMPEL #VintageComputerLab #VintageComputing #BTC #retrocomputing

Cray Y-MP EL Retroperspektive

Der Zusammenbau

Wir haben unsere Cray Y-MP EL aus dem Zwischenlager in den Großrechnerbereich geholt. Die Cray besteht in unserem Falle aus 4 Cabinets, eigentlich jeweils 2 19" Racks back-to-back zusammengeschraubt und dann die beiden Teile nebeneinander.

Sie ist zwar auf Rollen aber dennoch k

https://www.behindtheconsole.com/2025/01/12/cray-y-mp-el-retroperspektive/

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Almost assembled Cray Y-MP EL

Front and back cabinet combined again

The interconnect between the cabinets is quite heavy and getting the plugs into the right connectors is really challenge. The are upside down, close to a sharp metal edge and the connectors are shifted. Took us som

https://www.behindtheconsole.com/2024/12/10/almost-assembled-cray-y-mp-el/

#VintageComputing #XMASSpecials #Adventskalender #CRAY #CrayYMPEL #Tag10 #VintageComputerLab #VintageComputing #XMAS2024 #BTC