I cannot reproduce this. I need to do some more digging.

[QUOTE=rogue;456168]I cannot reproduce this. I need to do some more digging.[/QUOTE]

Thank you Mark. I suspect the Linux version was compiled with all optimizations on, using Haswell or more advanced instructions. Anyway, I can wait while still using previous versions of pfgw.

[QUOTE=ET_;456263]Thank you Mark. I suspect the Linux version was compiled with all optimizations on, using Haswell or more advanced instructions. Anyway, I can wait while still using previous versions of pfgw.[/QUOTE]

The GWNUM potion should detect the cpu and have no issue. It is probably the rest of it that now has too recent instructions.

I just downloaded Pfgw_Linux_3.8.3_20161203.zip from SourceForge.

It gives an 'illegal instruction' error on my Ivy Bridge machine; running under gdb I see

[code]
Dump of assembler code for function __gmpz_sizeinbase:
...
0x0000000000482f72 <+34>: sub %rax,%rcx
=> 0x0000000000482f75 <+37>: blsr %esi,%eax
0x0000000000482f7a <+42>: movslq %esi,%rsi
...
[/code]

where blsr ('clear lowest set bit of register') is a BMI1 instruction existing only in Haswell and later.

[QUOTE=fivemack;459198]I just downloaded Pfgw_Linux_3.8.3_20161203.zip from SourceForge.

It gives an 'illegal instruction' error on my Ivy Bridge machine; running under gdb I see

[code]
Dump of assembler code for function __gmpz_sizeinbase:
...
0x0000000000482f72 <+34>: sub %rax,%rcx
=> 0x0000000000482f75 <+37>: blsr %esi,%eax
0x0000000000482f7a <+42>: movslq %esi,%rsi
...
[/code]

where blsr ('clear lowest set bit of register') is a BMI1 instruction existing only in Haswell and later.[/QUOTE]

Well, at least my shoot on the dark went on target :smile:

So not a gwnum issue but gmplib compiled with too recent optimizations.

[QUOTE=fivemack;459198]I just downloaded Pfgw_Linux_3.8.3_20161203.zip from SourceForge.

It gives an 'illegal instruction' error on my Ivy Bridge machine; ...[/QUOTE]
Same here (on a Broadwell).

Is the binary going to be rebuilt or is it going to continue being on a biennial release schedule?

(There is a 2015 binary, a 2017 (a broken one), ...next one in 2019?)

Steven Harvey does the linux builds for pfgw. If anyone else wants to do it, I can help them.

[QUOTE=rogue;460518]Steven Harvey does the linux builds for pfgw. If anyone else wants to do it, I can help them.[/QUOTE]

Yes, please :smile:

[QUOTE=ET_;464066]Yes, please :smile:[/QUOTE]

I'll contact you via e-mail.

This is still affecting me. Has anyone been able to build a linux version which works for older processors?