Hi Bill,
I double-checked all differences between SVN 1273 and the latest
SVN.
The only primitive changed was dyadic ∼ (WITHOUT) which is not
used in your function.
Therefore I assume the change in performance was caused by
differences
in ./configure settings or other reasons beyond the source code.
You could
send me your current config.h to have a look at.
Best Regards,
Jürgen
On 5/3/20 12:19 AM, Bill Heagy wrote:
On 5/2/20 1:53 PM, Dr. Jürgen Sauermann wrote:
Hi Bill,
I cannot reproduce this.
Did you run *./configure*after updating from SVN? Sometimes
Makefiles slip
through and can cause performance differences that are then
caused by differering
* ./configure* options. I normally use make developwhich turns
many debug
features on which are turned off when using the default
*./configure* options.
CXXFLAGS=-Werror=maybe-uninitialized ./configure
I tried using "make develop" but couldn't figure out how to get
the Werror condition to apply. I've been using "timer" from the
"timer" workspace to get the timings.
It looks as if the problem started at svn 1274, the same one where
I had to start disabling the warning.
I have changed your benchmark a little to show the time spent:
*∇rr←sol nn;T**
**T←⎕TS**
**n←1↓⍳nn**
**r←,2**
**l:**
**→(nn<(↑n)*2)⍴x**
**r←r,↑n←(~∨⌿0=⊃r|¨⊂n)/n**
**→l**
**x:**
**r←r,1↓n**
**rr←+/r**
**0.001×0 0 0 24 60 60 1000⊥⎕TS-T**
**∇**
**
** ⊣sol 200000**
*
On 5/2/20 6:21 PM, Bill Heagy wrote:
For the last updates, my little test
program has slowed down by a factor of more than 4, debian 32
and 64 bit. (Same updates as the compiler problem appeared, I
think.)
∇rr←sol nn
n←1↓⍳nn
r←,2
l:
→(nn<(↑n)*2)⍴x
r←r,↑n←(~∨⌿0=⊃r|¨⊂n)/n
→l
x:
r←r,1↓n
rr←+/r
∇
sol 200000
|