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20141105Notes

1. Hurricane assembler (Palmer):
   • DREAMER compiler doesn’t generate good DSP code, and RTL bugs exist
   • use VLIW-like instruction bundles to give atomic parallel instructions (like moving data between network ports)
   • what’s left:
     • how do we tell these tools about a particular instance of Hurricane hardware?
     • how do we represent cross-tile communication?
   • Action Item (Palmer): test on more benchmarks
   • Action Item (Palmer): hurricane torture test
2. What makes Hurricane unique?
   • we need a competitive edge to get publications and prominence
   • let’s get an overview of existing architectures and compiling techniques to see how we stack up and how we’re different/unique
   • Action Item (JRB): compile overview of similar architectures and compilers
3. Functional Simulator (Albert):
   • models single tile, but can be extended to multi-tile programs
   • models correct behavior for any program by simulating one tile at a time
   • not working yet, 90% done
   • Action Item (Albert): finish simulator
4. Documentation (Everyone):
   • what document
   • how document update, did anyone get it to work?
   • link to raven3 repo: /tools/designs/raven3/raven3-design-doc.git
   • Action Item (Everyone): Document what you’ve done!
5. RTL Changes:
   • all bugs have been fixed
   • complex multiply has been added, but uses four multipliers
     • Action Item (Albert): explore the design space of this (three multipliers?)
     • switch it to 16x16 bit multiply
   • Action Item (Albert): finish single-port memory changes

For next week:

1. Pad Frame (John):
2. LVDS Update (Stevo/John):
3. Correlator Mapping and other Kernels (Palmer):
4. Clock tree problems (Stevo):