Click here to Skip to main content
15,893,381 members

Welcome to the Lounge

   

For discussing anything related to a software developer's life but is not for programming questions. Got a programming question?

The Lounge is rated Safe For Work. If you're about to post something inappropriate for a shared office environment, then don't post it. No ads, no abuse, and no programming questions. Trolling, (political, climate, religious or whatever) will result in your account being removed.

 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
RickZeeland20-Sep-21 9:46
mveRickZeeland20-Sep-21 9:46 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Rick York20-Sep-21 10:57
mveRick York20-Sep-21 10:57 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Gary R. Wheeler20-Sep-21 11:48
Gary R. Wheeler20-Sep-21 11:48 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
dshillito20-Sep-21 20:29
dshillito20-Sep-21 20:29 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Chris Nic20-Sep-21 20:59
Chris Nic20-Sep-21 20:59 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
dshillito21-Sep-21 0:14
dshillito21-Sep-21 0:14 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Chris Nic21-Sep-21 1:40
Chris Nic21-Sep-21 1:40 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
dshillito21-Sep-21 2:03
dshillito21-Sep-21 2:03 
In programming the CDC 6600 I also used to recode the innermost stuff in assembly language for speed. Time on our system was charged by the second. High priority jobs were scheduled immediately but cost 50c per second. That was in 1973 when my entry-level job paid $6000 per year, so it is more like $5 per second today. The compilers were not as good as optimizing as today's compilers so a good recode in assembly language could result in a 10x speedup, i.e. a 10x reduction in cost. In addition there was a charge for the number of I/O operations but there was also a multiplier for the field-length (the amount of main memory you were using at the time of the I/O) since the job tied up main memory due to the I/O buffers needing to be fixed during the transfer. This meant it was also very beneficial to structure a job to reduce its memory utilization to the absolute minimum during an I/O phase and expand it to the maximum during a CPU-bound phase. Again there was the possibility for 10-fold reductions in cost.
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Gary R. Wheeler21-Sep-21 11:38
Gary R. Wheeler21-Sep-21 11:38 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
jsc4227-Sep-21 0:49
professionaljsc4227-Sep-21 0:49 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Chris Nic27-Sep-21 0:52
Chris Nic27-Sep-21 0:52 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
englebart22-Sep-21 15:48
professionalenglebart22-Sep-21 15:48 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
ISanti20-Sep-21 21:27
ISanti20-Sep-21 21:27 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
ElmarBeck20-Sep-21 22:45
ElmarBeck20-Sep-21 22:45 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Phil J Pearson20-Sep-21 22:31
Phil J Pearson20-Sep-21 22:31 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
dshillito20-Sep-21 23:57
dshillito20-Sep-21 23:57 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Member 1239155920-Sep-21 23:57
Member 1239155920-Sep-21 23:57 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
Tomz_KV21-Sep-21 2:21
Tomz_KV21-Sep-21 2:21 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
theoldfool21-Sep-21 2:35
professionaltheoldfool21-Sep-21 2:35 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
theoldfool21-Sep-21 2:38
professionaltheoldfool21-Sep-21 2:38 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
JSilvers21-Sep-21 8:52
professionalJSilvers21-Sep-21 8:52 
GeneralRe: Fortran : 1st program 1954, Sept 20 Pin
OldGeezer21-Sep-21 2:44
OldGeezer21-Sep-21 2:44 
GeneralThought of the Day Pin
OriginalGriff20-Sep-21 4:25
mveOriginalGriff20-Sep-21 4:25 
GeneralRe: Thought of the Day Pin
Mike Hankey20-Sep-21 4:35
mveMike Hankey20-Sep-21 4:35 
GeneralRe: Thought of the Day Pin
megaadam20-Sep-21 4:42
professionalmegaadam20-Sep-21 4:42 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.