[Wien] MKL 10 linking

[Andrey Sobolev]

Hello Andrzej,

Sorry for delayed answer as I've been away from the mailing list a while. I've run some benchmarks on my computer (Intel Core2Duo T6400 @ 2.13 GHz, 1 GB RAM with Fedora 7) using my default and your pure layered compiler options. All programs compiled, linked and executed successfully with -O3 -xT, including lapw2, so your problem should lie in some system (or 3rd party) libraries.

The results of the benchmark (fccni as shown in the UG) are 24 secs with my default model vs. 21 secs with your pure layered model. What bothers me most is the difference in results - it needs 4 cycles to converge with my parameters and 3 cycles w/yours. I'd like to ask whether you observed such a behaviour in your benchmarks. Now I'll try other systems to see if the results obtained are significantly different.

Cheers,
Andrey.



-----Original Message-----
From: awronka at uni.lodz.pl
To: wien at zeus.theochem.tuwien.ac.at
Date: Fri, 7 Dec 2007 17:04:08 +0100 (CET)
Subject: Re: [Wien] MKL 10 linking

> 
>      Hello Andrey,
> 
>       I have performed a few quick benchmark runs to fccni example from
> user manual ("runsp_lapw   ce 0.0001  NI" for 3000 k points) for
> your default and my pure layered mkl10 linking models,  on my small
> home computers,  and stated as follows:
> 
> 1.  I can  compile all programs on "-O3  -xX" optimization level,  except
> of lapw2 program, where  only "-O1  xX"  passed, in both cases of
> compilation,  and system parameter OMP_NUM_THREADS=2 passed on  pure
> layered linking only.
> 
> 2.  Times of execution I obtained , were a little shorter for my pure
> layered linking model. Exactly,  it was 51 sec. for my and 1 min. 4 sec.
> for your  linking settings,  on my 3.2 GHz Intel  Pentum  4, 1GB RAM (667
> HHz) stationary computer  with  Centos 5 operating system (1 min/1 min. 10
> sec. on my Dell laptop   T5600 Core 2 Duo, 1.83 GHz with slow 5600 rpm
> hard disk and 2 GB RAM(667 MHz),  Suse 10.3).
> 
> I do not know, why that "-O3" optimization crash for lapw2 on my systems.
> What about your benchmark results?
> 
> Greetings,
>  Andrzej
> 
> 
> 
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