What does ./config.guess say your machine is? It's probably just too new to be detected correctly.
Bill. On Tuesday, 15 January 2019 05:05:06 UTC+1, Ronald Mak wrote: > > I wrote a C++ program that uses MPIR 3.0.0 to compute the first million > digits of pi. On a native Linux laptop with a Core i7 1.8 GHz CPU, my pi > program executed in under 8 seconds. > > I installed MPIR 3.0.0 on my MacBook Pro laptop with a Core i7 2.3 GHz CPU > and macOS Mojave 10.14.2. The same pi program took over 135 seconds to > execute. > > Then I used VirtualBox to install Ubuntu 18.10 in a virtual machine on my > MacBook Pro laptop. I installed MPIR 3.0.0 on the Ubuntu VM, and the same > pi program ran in about 7 seconds. > > What is going on with MPIR on macOS to cause my pi program to run so much > more slowly? It's apparently not a hardware issue, since the latter two > runs of my pi program were on the same laptop, but on different operating > systems. Does MPIR cause macOS to generate interrupts? Interpret certain > instructions? Paging? -- You received this message because you are subscribed to the Google Groups "mpir-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to mpir-devel+unsubscr...@googlegroups.com. To post to this group, send email to mpir-devel@googlegroups.com. Visit this group at https://groups.google.com/group/mpir-devel. For more options, visit https://groups.google.com/d/optout.
