Lahey Support
08-15-2003, 01:24 AM
At 2/25/00 at 10:34 AM, Tim Prince wrote:
>I didn't catch how you timed your code. For me, the lack of normal profiling
>ability on Windows is a serious deficiency in Lahey.
I was referring mainly to timings on other platforms. I did use the LF95
profiler once, and if I remember correctly, it wouldn't lump timings for
things like exp(), so I had to look at each line. It seems to me that I
didn't consider the LF95 profiler useful enough for my purposes to put much
effort into learning it better.
I'm glad to hear that you have found the LF95 implementation of exp() to be
quicker than most. My impression from that brief profiling exercise was
that exp() was still a relatively expensive operation; thus, any
improvement would have a pretty big impact on overall execution speed.
...MHP
--
Michael Prager [address removed]
NOAA Beaufort Laboratory
Beaufort, North Carolina 28516 USA
Standard Disclaimers: Opinions expressed here are personal
and are not otherwise represented. Any use of tradenames
in the above does not constitute a NOAA endorsement.
>I didn't catch how you timed your code. For me, the lack of normal profiling
>ability on Windows is a serious deficiency in Lahey.
I was referring mainly to timings on other platforms. I did use the LF95
profiler once, and if I remember correctly, it wouldn't lump timings for
things like exp(), so I had to look at each line. It seems to me that I
didn't consider the LF95 profiler useful enough for my purposes to put much
effort into learning it better.
I'm glad to hear that you have found the LF95 implementation of exp() to be
quicker than most. My impression from that brief profiling exercise was
that exp() was still a relatively expensive operation; thus, any
improvement would have a pretty big impact on overall execution speed.
...MHP
--
Michael Prager [address removed]
NOAA Beaufort Laboratory
Beaufort, North Carolina 28516 USA
Standard Disclaimers: Opinions expressed here are personal
and are not otherwise represented. Any use of tradenames
in the above does not constitute a NOAA endorsement.