sashakot / ibssa2

Scalable SA integration

Scalable Subnet Administration (SSA)

SSA forms a distribution tree with up to 4 layers. At the top of the tree is the core layer which is coresident with the OpenSM. Next layer in the tree is the distribution layer, which fans out to the access layer. Consumer/compute node (ACMs) are at the lowest layer of the tree. The size of the distribution tree is dependent on the number of compute nodes.

SSA distributes the SM database down the distribution tree to the access nodes. The access nodes compute the SA path record ("half-world") database for their client (compute) nodes and populate the caches in the ACMs. "Half-world" means paths from the client (compute) node to every other node in the IB subnet.

ibssa2's Issues

Fix coding style in ssa_signal_handler.c

cases in switch should be aligned with "switch" statement

Use AC_MSG_WARN insted of echo in onfigure.ac

addr2line and gstack checking in configure.ac report warnings using echo.

Fix memory leak in ssa_signal_handler.c

line = strtok(strdup(out), "\n");
strdup allocates memory