Religious wars (was Re: [Beowulf] A press release)
landman at scalableinformatics.com
Mon Jul 21 07:11:52 PDT 2008
Robert G. Brown wrote:
> On Mon, 21 Jul 2008, Joe Landman wrote:
>> Rumor has it that C-c C-o C-f C-f C-e C-e instructs emacs to make you
>> a cup of coffee. :^
>> I personally want an editor without all these fancy things: just
>> syntax highlighting for C/C++/Perl/Bash/Tcsh/Fortran/config files,
>> that has line numbers, and intelligent wrapping/splitting. Can run
>> from a GUI. Does split windows.
>> gvim does all these things. But you have to be very careful typing.
>> Because it it vi.
>> If Komodo had window splitting and intelligent wrapping, it would be
>> I looked at kate, but it requires kde.
>> pico/nano are ok, but they don't do line numbers, or split windows, or
>> intelligent wrapping.
> I don't know if it has all the features you want -- line numbers? Ugh.
> You must be coding in runes -- oh, wait, I mean Fortran;-) -- but you
Hey, we have a fair number of current customers with Fortran needs. It
is not going away any time soon (didn't I say somethin bout them
I like line numbers to help me figure out if I have a really long line
of text. Most text editors do a poor job of handling this case, happily
wrapping it, without telling you, so your key navigation across the long
lines looks really funky.
And back to the beowulf topic ...
I seem to have discovered the issue I was running into last week. Some
sort of weird timing problem with MPI_Waitsome on OpenMPI with
Infiniband (and shared memory). I tested the IB stack and MPI stacks,
and all report full functionality. I can run MPI over the IB. And it
works well. The problem is when I run this code which uses MPI_Waitsome
for part of its algorithm. With gigabit ethernet, it behaves well
(under OpenMPI 1.2.7-rc2). With Infiniband, it does not. Also the
OpenMPI seems to get awfully confused if you have IPoIB enabled (mostly
for diagnostics for the user). Turning that off helped stability.
Of course, since it was remote, I used vi (vim) as my editor. And a
This is a Fortran 9x code. I added a few extra debugging bits around
the troublesome MPI calls. Nice to do remotely, hard to do with a
remote gui over slower links.
I may just give in, and go full force into VIM. It is active, has lots
of features, and I already know basic vi from use for years. And its
undo feature doesn't blow chunks.
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
web : http://www.scalableinformatics.com
phone: +1 734 786 8423
fax : +1 866 888 3112
cell : +1 734 612 4615
More information about the Beowulf