Dear all,
I have installed ALPS 1.35 on my two years old laptop and on my brand- new APPLE. Now the astonishing thing: The dmrg routines from the applications run three to four times faster on my laptop. I have already tried to compile ATLAS, BLAS and LAPACK on the APPLE, but this had no effect on the performance.
Is there anything known about performance problems on Macs?
Thanks,
Dirk