2012 10 19

#STATUS

###ORRAN

• Big push from state and vendors to setup MOC.
• Possible announcement from Governor
• Requesting space / connections from BU to host MOC & to interface with the government entities.
• Priory MSI -> ioAPIC questions with Yi and Rich. Can it be optimized?

###DAN

• Apache / MapReduce benchmark suite running on (VMs) on KD-SESA.
• Plan to swap MR for EBBs, let this drive the Linux library (EBBlib)
• JA wants a write-up

###JIM

• Bring development unto par on BG fronted w/ IBM toolchain
• Replace GCC atomics throughout EBBRT
• Jim had questions about the underlying routes and p2p/broadcast of tree (and how BG linux implements)

###JA

• Torus implementation considering CNS -> SPI -> CNK (IBM firemware for BG)
• BG includes to book and abandons them afterward (not removed from address space)
• Elasticity as a second order to scale. I.e. cripple KH to allow for easy internode-communication
• Will need full-blown Linixcies required for real APPs. KH allows for this integration

###MARK

• got running on BG/P, ran comparisons between PC and BG/P
• each allocation is allocated to a single core
• 200 image pairs distributed across 4096 cores
• each convolution uses 1 node, each quadrant of image has core. Determined by the division of work
• Cumulative work on PC 122h, 9.5 minutes
• Coming next, IO optimized version. No collective or deduplication efforts on BG, time is dominated by BG's IO path.
• Huge datapoint hour to a minute. Scaling (law?) from quadratic to linear.