<div class="gmail_quote">On Tue, Dec 16, 2008 at 6:53 PM, Derek Broughton <<a href="mailto:news@pointerstop.ca">news@pointerstop.ca</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div class="Wj3C7c">Chaman Singh Verma wrote: > Hello, > > I am trying to execute MPI programs on ubuntu 8.10 ( 64 bit ) and I am > getting the following errors > > undefined reference to `aio_error64' > /home//Software/ParComp/MPICH2/lib/libmpich.so: undefined reference to > `aio_read64' > /home//Software/ParComp/MPICH2/lib/libmpich.so: undefined reference to > `aio_write64' > /home/Software/ParComp/MPICH2/lib/libmpich.so: undefined reference to > `aio_return64' > /home/Software/ParComp/MPICH2/lib/libmpich.so: undefined reference to > `aio_suspend64' > collect2: ld returned 1 exit status > > What package I must installed. I was thinking that AIO is the part of > OS only and must come with the linux OS itself. </div></div>Probably libaio. Have you tried looking for the appropriate MPI apps as Ubuntu packages? There are lots of them... -- derek -- ubuntu-users mailing list <a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a> </blockquote></div> Hello, Thanks for the important information. Looks ubuntu applications are interesting. bye. csv