Vector setup time for Cyber 995

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2 total messages Started by hs Hans Spoelder Wed, 18 Jul 1990 13:16

#33

Author: hs Hans Spoelder
Date: Wed, 18 Jul 1990 13:16

17 lines
954 bytes

hi,

For a course in computer architecture and vector processing which
i am currently developing, I want to illustrate Hockney's classification
of vector computers with some real examples. Bad luck.
Hardware manuals give clock cycles, and even vector lengths but *no*
vector setup times. 
I'm interested in the setup times for the Cyber 995E, but a reference
to a nice little book surveying some more machines would be very nice
Can anyone give a hint 

Hans Spoelder
Physics Applied Computer Science
Faculty of Physics and Astronomy
Vrije Universiteit
De Boelelaan 1081
1081 HV  Amsterdam

Re: Vector setup time for Cyber 995

#37

Author: rich ragan
Date: Thu, 19 Jul 1990 16:46

31 lines
1368 bytes

Hans Spoelder requested vector setup times for Cyber 995.
The following are the vector setup times for the 995E:
N is the vector length (max of 512). Times are given
as clock units which is 16 nsec for the 995. Thus, ADDXV
takes 52 clocks to setup and produces a result per clock
after that.

ADDXV  52+N  Integer Add
SUBXV  52+N  Integer Subtract
CMPxxV 53+N  Integer compares (where xx= EQ, LT, GE, NE)
SHFV   55+N  Shift
IORV   52+N  Inclusive OR
XORV   52+N  Exclusive OR
ANDV   52+N  And
CNIFV  53+N  Convert Integer to Float
CNFIV  53+N  Convert Float to Integer
ADDFV  56+N  Floating Add
SUBFV  56+N  Floating Subtract
MULFV  56+N  Floating Multiply
DIVFV  80+7N Floating Divide
SUMFV  82+N  Floating Sum Reduction
MRGV   51+N  Merge vectors
GTHV   73+N  Periodic gather
SCTV   81+N  Periodic scatter

-- 
Richard R. Ragan (408) 496-4340
Control Data Corp., Silicon Valley Operations
--
Richard R. Ragan (408) 496-4340
Control Data Corp., Silicon Valley Operations

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