What is KAPF V2.0 in AlphaStation SPEC run info?

What is KAPF V2.0 in AlphaStation SPEC run info?

Post by David Newto » Fri, 26 May 1995 04:00:00



Looking at the SPEC benchmarks for the DEC AlphaStation 200 I noticed
 the "Other Software" entry in the ancillary info. (below)

  What is KAPF V2.0 ?  Does DEC provide it with their compilers or sell it?
  Is it required to produce such good SPEC numbers?

---- fragment of ancillary SPEC info -------
Hardware
     Model Number:               AlphaStation 200 4/233
     Memory:                     112MB
     Disk Subsystem:             1GB(SCSI)
Software
     O/S & Version:              DEC OSF/1 V3.0 (Rev. 347)
     Compilers & Version:        DEC C X4.2-001
                                 DEC Fortran T3.5
     Other Software:             KAPF V2.0            <<<<<<<<<<<<<<
     File System Type:           UFS
     System State:               Multi-user
--

 
 
 

What is KAPF V2.0 in AlphaStation SPEC run info?

Post by Christopher Amar » Sat, 27 May 1995 04:00:00



>Looking at the SPEC benchmarks for the DEC AlphaStation 200 I noticed
> the "Other Software" entry in the ancillary info. (below)

>  What is KAPF V2.0 ?  Does DEC provide it with their compilers or sell it?
>  Is it required to produce such good SPEC numbers?

>---- fragment of ancillary SPEC info -------
>Hardware
>     Model Number:               AlphaStation 200 4/233
>     Memory:                     112MB
>     Disk Subsystem:             1GB(SCSI)
>Software
>     O/S & Version:              DEC OSF/1 V3.0 (Rev. 347)
>     Compilers & Version:        DEC C X4.2-001
>                                 DEC Fortran T3.5
>     Other Software:             KAPF V2.0            <<<<<<<<<<<<<<
>     File System Type:           UFS
>     System State:               Multi-user
>--


KAPF 2.0 refers to Kuck & Associates Optimized Fortran compiler. It does
extra optimizations like loop unrolling, etc.

If the SPEC numbers were achieved using KAPF, you are likely to get that
performance only if you are running applications that benefit from the
optimizations that KAPF does (like the SPEC suite.) Otherwise, you're
actual performance will be lower.

Chris Amaru
Technology Editor
BackOffice Magazine

 
 
 

What is KAPF V2.0 in AlphaStation SPEC run info?

Post by John L. Henni » Sat, 27 May 1995 04:00:00



writes...

Quote:>Looking at the SPEC benchmarks for the DEC AlphaStation 200 I noticed
> the "Other Software" entry in the ancillary info. (below)

>  What is KAPF V2.0 ?  Does DEC provide it with their compilers or sell it?
>  Is it required to produce such good SPEC numbers?

KAP is a preprocessor that is available as a separate product.  It helps
the floating points benchmarks.  It is written by Kuck and Associates,
and several hardware vendors use it.  Digital sells it and supports it.

The SPECfp numbers would be less without it, but not amazingly so.  We
don't use it for SPECint.

If you are considering using KAP for your own code, one of the nice
features it has is that you can insert directives in your source code to
tell KAP how to (for example) parallelize individual routines and loops.  
The run rules for SPEC do not allow us to modify the source code of the
SPEC benchmarks.  So you might actually see more benefit than we do, if
you have code which is sufficiently performance critical to be worth
spending the effort for such fine-tuned control.

    /John Henning
     CSD Performance Group
     Digital Equipment Corporation

     Speaking for myself, not Digital

 
 
 

1. INS spec. issues again...

Hi,

I asked about some issues concerning the INS spec. two months ago and I
got no response. Maybe I have more luck this time, as someone may have
ran into the same problems/uncertainties in the meantime....

Last posting (or see attachement below):
http://x73.deja.com/getdoc.xp?AN=696122255&CONTEXT=980167029.28678561...

1.
I think now that the examples are incorrect and they have not been fixed
during the revision of the document, because a previous version of the
spec. has as a prefix "iioploc://".

2.
I don't know about the impact on using the terms "localhost",
"127.0.0.1", or "name_of_my_host" with the IP layer. Should any of the
names be used preferably, I mean is there any problem using 127.0.0.1
and thus saving the DNS lookup...!?!?! *confused*

3.
The ObjectKey is marked as optional by the grammar, i.e. surrounded by
brackets: ["/"<key_string>]. Only chapter "13.6.10.2 corbaloc:rir" of
CORBA/IIOP 2.4.1 mentions that: "An empty <key_string> is interpreted as
the default "NameService".
Does this interpretation hold for the corbaloc:iiop and corbaname:iiop
URLs as well ?

Any comment is highly appreciated,

        Michael
--
---------------------------------------------------------------------
Michael Rumpf                               Brokat Technologies
Software Engineer                           http://www.brokat.com
Phone +49 711 78844 435                     Industriestr. 3

---------------------------------------------------------------------

 Hi everybody !

 I just discovered a few unclear issues in the INS spec/CORBA2.4 spec:

 1. INS (November 2000) 2.5.3.1 corbaname examples

 corbaname://555xyz
 corbaname:///#x/y/z
 corbaname:///

 The part after the first colon is a

 <corbaloc_obj> := <obj_addr_list> ["/" <key_string>]

 The grammar in the CORBA 2.4 spec. 13.6.10 does not mention the double
slashes...
 Are the examples incorrect or am I overseeing something ?

 2. What is meant by the sentence (13.6.10.3 corbaloc:iiop URL):

 "host: DNS-style host name or IP address. If not present, the local
host is assumed."

 Is meant "localhost" (127.0.0.1) here or the name of the local host,
whatever name is configured ?
 Or should the "localhost" be taken if no hostname is configured ?

 Any help would be appreciated...
 Thanks,

 Michael

2. POSIX threads and word tearing

3. INS spec problems...

4. Help needed for Chameleon...

5. more info executable will run, but cant run from within PB3.0a

6. Spectravideo SV-328

7. newbie( looking for v2 specs and source)

8. Account lockout's

9. CHIPS and SYSTEMS SPEC Chart v2.3

10. Creating Excel Plug-Ins: Latest Info?

11. 8150, 3270, INS info wanted..

12. FINALLY!!! I am set up and running!

13. Anyone running RIP V2 out there?