Post on 01-Jan-2016
East meets West: Collaboration goes National
WARM CONGRATULATIONS to IRMACS
Welcome to D-DRIVE whose mandate is to study and develop resources specific to distributed research in the sciences with first client groups being
the following communities
• High Performance Computing • Mathematical and Computational Science Research • Math and Science Educational Research
08.04.05
We look forward toa partnership rolewith IRMACS in
Research Research training Outreach
• educational • industrial
Pan Canadian Collaboration
The May
AMS cover
features math in
the NewMIC
cave
Experimental Mathematics of Hyperbolic Knots
(@)
(@)
We have certain
knowledge but no
proof of this---the
simplest of 998
hyperbolic volumes
Experimental Mathematics and Zeta Functions
Bailey, Bradley and I have
recently discovered and
proved in Maple three equivalent
identities
• this hypergeometric identity is easily computer provable
after using PSLQ up to 50,000 digits (250 terms)
ACEnet completes the Pan Canadian Consortia
ACENET and HPC@DAL
Dalhousie’s role will be in
collaboration, visualization, and
large data-set storage
Projects include• PSL• FWDM (IMU)• CiteSeer•
Advanced KnowledgeManagement
Diverse partners include• International Mathematical Union• CMS • Symantec and IBM
High Performance Computing at DDrive
• A super computer for mathematicians!
• Apple Xserve: cluster of 64-bit PowerPC G5 processors
• 2 compile nodes: 2.5 GHz dual G5, 8Gbyte memory,
250 Gbyte disk, 30” display
● 65 compute nodes: 2.3 Ghz dual G5, 80 Gbyte disk
● 35 TByte RAID array storage
● Theoretical peak performance: 600 GFlops
Software and Benchmarking
• Operating System: Apple Mac OS X 10.x
• Message Passing: MPI
• Compilers: gcc 3.4, 4.0; IBM XL C/Fortran
• Management: Xgrid (Apple), Torque (OpenPBS), …
• The HPC Challenge Benchmark
Main uses of the cluster
• Mathematical research
• Collaboration with other HPC groups in
Dalhousie: Computational Chemistry, Physics,
etc.
• Cdn collaboration: IRMACS, ACEnet, WestGrid,
etc.
• Grid Computing: cluster of super computers,
extra large datasets, the
most challenging problems
• International collaboration ….. and Apple
Another pure mathematics project
• Search for cubic cages: 3-valent graphs of given girth with as few
vertices as possible.
• Translated to search for specific subgroups of groups
G1 := < a,b,c | a^2, b^2, c^2 > and G2 := < x, y | x^2 >.
• lowx: a parallel implementation of the low-index
subgroups algorithm. Fastest known algorithm to find
normal subgroups.
• Marston Conder – University of Auckland, New Zealand,
Peter Dobcsanyi – Dalhousie
An interdisciplinary project
• Symmetry + Integer Programming
Operations Research, Mathematics, Computer Science
• Group theoretical methods in solving large integer linear
programming problems.
• Analyzing the complete MIPLIB 2003 mixed integer problem library.
• Istvan Maros – Imperial College, Leonard Soicher – Queen Mary Univ of
London, Peter Dobcsanyi – Dalhousie, Imperial, London e-Science Centre
• The first Cross-Atlantic Grid ?