* Some timings after LCM, resp. alignment of stack doubles on i686
@ 1999-03-23 22:26 Toon Moene
1999-03-31 23:46 ` Toon Moene
0 siblings, 1 reply; 2+ messages in thread
From: Toon Moene @ 1999-03-23 22:26 UTC (permalink / raw)
To: egcs
L.S.,
Here are some timings for our NWP code after addition of LCM and after
the alignment code for stack doubles went into egcs.
Pre-LCM with LCM with alignment
0SUPOBS TOOK : 0.30999946594 0.32000064850 0.31000041962
0DATACH TOOK : 147.2699890137 150.6799926758 148.7799987793
0ANAEVA TOOK : 214.6200103760 209.6599884033 200.5200042725
0GRPEVA TOOK : 1259.9199218750 1973.4698486328 1227.4000244141
0HUMSUP TOOK : 0.05993652344 0.05004882812 0.05004882812
0DATACH TOOK : 46.0799560547 46.5000000000 46.8900146484
0HUMEVA TOOK : 23.9699707031 23.1499023438 23.2700195312
0GRPEVA TOOK : 31.8000488281 32.6699218750 31.3900146484
See the fourth line ! This code contains _some_ DOUBLE PRECISION
variables and automatic arrays. Apparently something in the LCM code
generation threw it off-alignment, which was repaired by the alignment
updates.
Unfortunately, the forecast code crashes (it generates NaNs and then
dies) since the LCM change; I'll have to dig into that.
HTH,
--
Toon Moene (toon@moene.indiv.nluug.nl)
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
Phone: +31 346 214290; Fax: +31 346 214286
g77 Support: fortran@gnu.org; egcs: egcs-bugs@cygnus.com
^ permalink raw reply [flat|nested] 2+ messages in thread
* Some timings after LCM, resp. alignment of stack doubles on i686
1999-03-23 22:26 Some timings after LCM, resp. alignment of stack doubles on i686 Toon Moene
@ 1999-03-31 23:46 ` Toon Moene
0 siblings, 0 replies; 2+ messages in thread
From: Toon Moene @ 1999-03-31 23:46 UTC (permalink / raw)
To: egcs
L.S.,
Here are some timings for our NWP code after addition of LCM and after
the alignment code for stack doubles went into egcs.
Pre-LCM with LCM with alignment
0SUPOBS TOOK : 0.30999946594 0.32000064850 0.31000041962
0DATACH TOOK : 147.2699890137 150.6799926758 148.7799987793
0ANAEVA TOOK : 214.6200103760 209.6599884033 200.5200042725
0GRPEVA TOOK : 1259.9199218750 1973.4698486328 1227.4000244141
0HUMSUP TOOK : 0.05993652344 0.05004882812 0.05004882812
0DATACH TOOK : 46.0799560547 46.5000000000 46.8900146484
0HUMEVA TOOK : 23.9699707031 23.1499023438 23.2700195312
0GRPEVA TOOK : 31.8000488281 32.6699218750 31.3900146484
See the fourth line ! This code contains _some_ DOUBLE PRECISION
variables and automatic arrays. Apparently something in the LCM code
generation threw it off-alignment, which was repaired by the alignment
updates.
Unfortunately, the forecast code crashes (it generates NaNs and then
dies) since the LCM change; I'll have to dig into that.
HTH,
--
Toon Moene (toon@moene.indiv.nluug.nl)
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
Phone: +31 346 214290; Fax: +31 346 214286
g77 Support: fortran@gnu.org; egcs: egcs-bugs@cygnus.com
^ permalink raw reply [flat|nested] 2+ messages in thread
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1999-03-31 23:46 ` Toon Moene
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