[MITgcm-devel] [MITgcm-cvs] MITgcm/tools/build_options CVS Commit

[David Ferreira]

On 4/11/10 10:07 AM, Menemenlis, Dimitris (3248) wrote:
>> My suggestions:
>> a) Separate optfiles (per queue). It explodes the number of optfiles but solves
>> the problem for good.
>> b) The "generic" Pleides optfile uses the -ax instead of the -x flag. That flag
>> builds a generic binary with optional code paths depending on the actual
>> processor used. So I would have a -axSSSE3,SSE4.1 (and in the future ,SSE4.2)
>>
>>      
Actually, I don't mind having just one optile file with the lowest 
common denominator. I just
thought that we should provide the highest and that users by reading the 
NAS doc or
comments in the optfile or talk to someone would learn about the 
multiple queues/optimization.
Obviously, it doesn't work (well it does, but at a fairly high price 
even for people who use
pleiades everyday).
Let's just change 4.2 to 4.1.
david