Pick Your Poisson: P-1 Bounds - Page 3

James Heinrich · 2020-09-08, 16:25

Quote:

Originally Posted by masser

Shouldn't a calculator answer the question posed?
Question posed, view the answer here.

It should, and I had broken it, thank you for bringing it to my attention. Fixed now.

kriesel · 2020-09-08, 16:52

Quote:

Originally Posted by chalsall

And for Perl, I recommend Strawberry Perl. This is apparently the version Larry Wall himself uses when he's not on Unix.

Just to say, I also have found that trying to compile Perl into a Windows exec is not scalable. Not only are the executables huge, but they take a very long time to launch because of all the unpacking of the environment involved.

Not a good User Experience.

Those who get the scripts from this codebase are going to be technically savvy. Presume they already have the interperters installed, or will do so if they wish to use the scripts.

Chalsall:
What compiler are you using, that's producing huge executables?
How big are the source files?
How long do they take to start?

I've used IndigoStar's perl2exe, and get a 6MB executable (compressible to below 4MB) including some frills (fully filled in Windows file properties, icons), from a 131KB/2500 line source file. Startup from command line prompt to printing initial output takes less than 1 second on an old dual-Xeon-E5520 system running Windows 7 with rotating hard disk. I've been using ActiveState perl for development, then compile for distribution to other machiens so I don't need to install perl everywhere. And the app has a user-initiate self-update function to pull down updates from a network file share.

Python however, I've seen a mere couple of pages of source result in a slow unpack and tens of MB size standalone package leading to a whole jungle of unpacked files hidden somewhere. Haven't tried IndigoStar's python2exe demo yet though. Soon.

storm5510 · 2020-09-08, 17:02

Quote:

Originally Posted by kriesel

What compiler are you using, that's producing huge executables?
How big are the source files?
How long do they take to start?

In my experience, I had a 15K script compile into an 830MB executable.
It started right away, but ran oh so slowly.
This was with Strawberry Perl.

chalsall · 2020-09-08, 17:12

Quote:

Originally Posted by kriesel

What compiler are you using, that's producing huge executables? How big are the source files? How long do they take to start?

I was just using PAR as the "compiler". An 8 KB file became a 10 MB executable. Launch time was in the five to eight-second range, on a i3-7100 CPU with 16 GB of RAM. Not acceptable for "normals".

I also found myself trying to chase down a memory leak with forking code, so I just abandoned the idea of using the Perl code for production, and moved to C.

"Plan to throw the first one away. You will, anyway..." - Fred Brooks. The Mythical Man-Month

masser · 2020-09-08, 17:58

Quote:

Originally Posted by chalsall

"Plan to throw the first one away. You will, anyway..." - Fred Brooks. The Mythical Man-Month

So true. Wish more people understood this.

masser · 2020-09-08, 18:01

Quote:

Originally Posted by James Heinrich

It should, and I had broken it, thank you for bringing it to my attention. Fixed now.

Awesome. Thanks!

James Heinrich · 2020-09-08, 18:31

Quote:

Originally Posted by James Heinrich

It should, and I had broken it, thank you for bringing it to my attention. Fixed now.

Even better, maybe the answer provided should both answer the question and be correct. Fixed again...

kriesel · 2020-09-08, 18:44

Quote:

Originally Posted by chalsall

I was just using PAR as the "compiler". An 8 KB file became a 10 MB executable. Launch time was in the five to eight-second range, on a i3-7100 CPU with 16 GB of RAM. Not acceptable for "normals".

Thanks, I'll be sure to continue to stay away from Perl PAR. http://www.indigostar.com/perl2exe/ works for me. Price is not awful.
On the Python front, attempts to compile gpuowl primenet.py via various approaches have yielded from 10.3 up to 31.2MB executable compressible down to 8+MB. Up to 15-20 seconds start time to get a "Hello!" program run. I have 1 or 2 more approaches to try yet.

kriesel · 2020-09-08, 18:50

Quote:

Originally Posted by storm5510

In my experience, I had a 15K script compile into an 830MB executable.
It started right away, but ran oh so slowly.
This was with Strawberry Perl.

Storm5510: Was that with PAR, or some other method?

storm5510 · 2020-09-09, 00:16

Quote:

Originally Posted by kriesel

Storm5510: Was that with PAR, or some other method?

PAR is not familiar to me so it must have been something else. Something I pulled in with CPAN and then had to determine how to use it. I cannot recall the exact name.

storm5510 · 2020-10-02, 15:02

There is something I want to verify so please don't gouge me about it...

Let's say I have a P-1, or ECM, with B1 = 50e6 and all of the preceding tests had a B1 which was smaller. Common sense says the higher B1 will cover the same territory which the smaller ones did then continue on to its own set value. All tests start at zero (0). Fact or fiction?

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2020-10-02, 15:02	#33
storm5510 Random Account Aug 2009 3²·7·31 Posts	There is something I want to verify so please don't gouge me about it... Let's say I have a P-1, or ECM, with B1 = 50e6 and all of the preceding tests had a B1 which was smaller. Common sense says the higher B1 will cover the same territory which the smaller ones did then continue on to its own set value. All tests start at zero (0). Fact or fiction?