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Topic: PARI/gp wins my Riemann zeta speed contest, so far
Replies: 9   Last Post: Feb 15, 2013 10:43 PM

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David Bernier

Posts: 3,190
Registered: 12/13/04
Re: PARI/gp wins my Riemann zeta speed contest, so far
Posted: Jan 21, 2013 12:56 AM
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On 01/21/2013 12:52 AM, David Bernier wrote:
> On 01/21/2013 12:42 AM, James Waldby wrote:
>> On Mon, 21 Jan 2013 00:23:08 -0500, David Bernier wrote:
>>

>>> I had done my own Riemann zeta computations with Bernoulli numbers,
>> [big snip]
>>> 3 hours and 34 minutes for 20017 significant digits
>>> near 1/2 + i*14.134725141734693790457251983562470270784257

>> ...
>>
>>

>>> On PARI-gp, I'm trying to get the readline library included.
>>> That means backspace reprints the previous query, etc.

>>
>> I assume you use a Linux x86_64 operating system; what
>> distribution is it? Did you install PARI-gp from a package,
>> or compile it? PARI-gp as packaged with Ubuntu uses readline
>> automatically. However, it is up-arrow rather than backspace
>> that moves through previous queries. Library files include
>> /lib/x86_64-linux-gnu/libreadline.so.6 and
>> /lib/x86_64-linux-gnu/libreadline.so.6.2 .
>>

>
> I downloaded a tar-ball, and did the install on CentOS 6.3,
> a Red Hat Ent. Linux clone, minus branding.
>
>
> I remember "loadable modules", that can be arranged
> with ldconfig and the *so* "loadable modules" or
> "plugins" directories and files.
>
>
>
> CentOS 6.3 , 64-bit version.
>
> I installed from source.
>
> intro. message:
> $ gp
> GP/PARI CALCULATOR Version 2.5.3 (released)
> amd64 running linux (x86-64/GMP-5.0.5 kernel) 64-bit version
> compiled: Dec 27 2012, gcc-4.4.6 20120305 (Red Hat 4.4.6-4) (GCC)
> (readline not compiled in, extended help enabled)
>
> Up-Key doesn't work.
>
> David Bernier
>


Many web recommendations include doing this as root:

# yum install readline-devel

dave




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