Re: [OMPI users] Suggestions needed for parallelisation of sorting algorithms (quicksort)

2006-12-19 Thread Andreas Schäfer
Hiho, On 12:33 Tue 19 Dec , Harakiri wrote: > i need some input on the parallelisation of quicksort. > If anyone knows a more appropriate forum/list than > this, please tell me =) uhm, do you have access to a library? Get yourself a textbook on algorithms. Knuth should be a good basis to star

Re: [OMPI users] configure openmpi with support for Sun gridengine(SGE)?

2006-12-19 Thread Michael John Hanby
Never mind, I found it in the FAQ, need version 1.2 of OpenMPI. I'll give that a go. -Original Message- From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Michael John Hanby Sent: Tuesday, December 19, 2006 2:28 PM To: Open MPI Users Subject: [OMPI users] con

[OMPI users] Suggestions needed for parallelisation of sorting algorithms (quicksort)

2006-12-19 Thread Harakiri
Hello, i need some input on the parallelisation of quicksort. If anyone knows a more appropriate forum/list than this, please tell me =) I've written 2 different approaches to the quicksort parallelisation. 1. The "master" server splits the array of numbers into N seperate parts, where N is the

[OMPI users] configure openmpi with support for Sun gridengine (SGE)?

2006-12-19 Thread Michael John Hanby
Howdy, I'm compiling OpenMPI 1.1.2 on a Rocks Cluster 4.2.1. The cluster has sge installed which is what the users will use to submit their MPI jobs (i.e. using qsub). I'm not having any luck finding the correct parameters to provide ./configure in order to include support for SGE. Here's the co

[OMPI users] segv at runtime with ifort

2006-12-19 Thread Brock Palen
Hello, We are getting seg faults at run time on MPI_CART_CREATE() when using openmpi-1.1.2 built with the intel compilers. I have included all versions, code and messages bellow. I know there were problems in the past, and dug around the archives but didn't find this any place. Has an

Re: [OMPI users] crashed openmpi job fails to clean up ....

2006-12-19 Thread Ralph H Castain
Hi Lydia I would like to say we clean up perfectly, but :-( The system does try its best. I'm a little surprised here since we usually clean up when an application process fails. Our only known problems are when one or more of the orteds fail, usually due to a node rebooting or failing. We ho

[OMPI users] crashed openmpi job fails to clean up ....

2006-12-19 Thread Lydia Heck
A job which crashes with an floating point underflow (or any IEEE floating point exception) fails to clean up after itself using openmpi-1.3a1r12695 .. Nodes with copies of slaves are sitting there ... I also noticed that orted are left behind on other crashed jobs .. Should I have to expect t