Hi

My two ha'porth.

If you are thinking of "upgrading" your sole Mac software development box to Lion I'd say "don't do it unless you like a lot of pain". Anything built on Snow Leopard should run okay on Lion (my Tiger builds seem okay on 10.4, 10.5, 10.6...), so unless you really have an over-riding need to move to 10.7, I'd hang fire.

If you're only running applications and not developing, you can always shout at the developers if things go wrong.

My plan is to install Lion on a spare bootable disk and see what happens - if all else fails, at least I can ignore the upgrade until Apple release 10.7.1, 10.7.2, etc and fix most of their screw-ups.

On 10 Sep 2011, at 08:03, Jacques-Philippe Colletier wrote:

Hi,

Overall, the transition from 10.6 is seemingless, crystallographically-wise.

Of course you need to have the new XCode 4.1 installed, and you should also download new, 10.7-dedicated 64bits gcc/gfortran/g77 bundles from http://hpc.sourceforge.net/
And then, CNS, Phenix, CCP4, etc... will just run perfect.
I had to reinstall Coot -- but that's minor.
(Mac)Pymol also works fine, yet (for some reason) uses a lot of resources even when idle. As per the Upsalla Soft. Factory programs, you'll have to recompile then using the above mentioned bundles, or get already compiled binaries from Mark Harris. You'll also need to recompile Gromacs (and fftw3) if you're using it -- but it then works great.

I agree with W. Scott on the fact that the new OS is really greedy in terms of resources. I surely wont upgrade my other, older mac computers that run just fine on 10.6.
But if you have a new Mac, Lion is is really neat.

Best
Jacques


Le Sep 10, 2011 à 2:09 AM, William Scott a écrit :

Hi Phil:

I've found few, if any advantages.  I fear for the future.

I've had problems getting coot to run stereo due to the X11 implementation in 10.7. Apart from that, no major problems with crystallographic software.

Lion greedily uses memory, and any computer I have with less than 4 gig of memory has become extremely sluggish as a consequence of the "upgrade." Ideally, you need 8 gig.

Even with that, on my 2010 mini that I use for music playback, I regressed to 10.6.8, because of the audio interface. (It seems less robust, more prone to dropouts and now lacks integer mode output).

Sara has been screaming at me for the last two weeks (nothing us usual in of itself) because Apple decided to get rid of "Save As".

Xcode and the compiler set is free again on 10.7.

I've put some suggestions here for how to get rid of the most annoying new features:
http://sage.ucsc.edu/~wgscott/xtal/wiki/index.php/Lion_upgrade_notes

All the best,

Bill






On Sep 9, 2011, at 1:28 AM, Phil Evans wrote:

Is there any opinion or experience about whether Lion is ready for crystallographic use? Should I "upgrade"?

Phil

William G. Scott

Contact info:
http://chemistry.ucsc.edu/~wgscott/

Harry
--
Dr Harry Powell,
MRC Laboratory of Molecular Biology,
Hills Road,
Cambridge,
CB2 0QH

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