[isabelle-dev] Cannot execute Poly/ML in 32bit mode

2015-05-28 Thread Peter Lammich
Hi list,

When I start Isabelle, I get the following warning message on the
console:

### Cannot execute Poly/ML in 32bit mode (missing shared libraries for
C/C++)
### Using bulky 64bit version of Poly/ML instead

Is it a problem to use the bulky 64bit version? 

--
  Peter




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Re: [isabelle-dev] Cannot execute Poly/ML in 32bit mode

2015-05-28 Thread Manuel Eberl
I think the main (and only) problem is that it uses significantly more 
memory.


On 28/05/15 11:21, Peter Lammich wrote:

Hi list,

When I start Isabelle, I get the following warning message on the
console:

### Cannot execute Poly/ML in 32bit mode (missing shared libraries for
C/C++)
### Using bulky 64bit version of Poly/ML instead

Is it a problem to use the bulky 64bit version?

--
   Peter




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Re: [isabelle-dev] Cannot execute Poly/ML in 32bit mode

2015-05-28 Thread Makarius

On Thu, 28 May 2015, Peter Lammich wrote:


When I start Isabelle, I get the following warning message on the
console:

### Cannot execute Poly/ML in 32bit mode (missing shared libraries for C/C++)
### Using bulky 64bit version of Poly/ML instead

Is it a problem to use the bulky 64bit version?


Usually none, apart from wasting about a factor 2 of ML heap space.
On http://isabelle.in.tum.de/installation.html there is snippet of 
explanation:


  32-bit C/C++ standard libraries on 64-bit Linux (optional, for improved
  performance of Poly/ML)

It depends on the Linux distribution which packages provide the 32-bit 
C/C++ standard libraries mentioned above.



Makarius
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