http://adambarta.github.com/spead/


S-P-E-A-D S.E.R.V.E.R

usage:
  ./spead 
    -w [workers (d:4)] 
    -p [port (d:8888)] 
    -b [buffers (d:10)] 
    -l [buffer length (d:10)]

This is a multicore implementation of the Streaming Protocol for Exchange of Astronomy Data (SPEAD).

Workers refer to subprocesses used to capture and process UDP packets. Defaults to amount of processor cores

Port (duh)

Buffers can be thought of as hash tables where packets will be inserted which are backed by linked lists.
  b defines the amount of the hash tables 
  l defines the length of the hash tables



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┗━┓┣━┛┣╸ ┣━┫ ┃┃   ┗━┓┣╸ ┣┳┛┃┏┛┣╸ ┣┳┛
┗━┛╹  ┗━╸╹ ╹╺┻┛   ┗━┛┗━╸╹┗╸┗┛ ┗━╸╹┗╸


Utils
-----

  pipespead
    used to process a tcpdump'd spead stream and retransmitt spead packets to udp
    
    tcpdump -B 10240 -s0 -i ethX -nn -U -w - port [spead_port] | pipespead 224.0.0.1 8888
      
      this will snarf udp spead packets and send them to multicast
      use something like to recv them
      socat UDP4-RECVFROM:8888,ip-add-membership=225.0.0.37:yourip,fork - | hd


GPU
---

  This folder contains some examples of how to leverage the spead coalescing server api,
  each example is compiled into a dynmically linkable object or (.so) file.
  To use the api each component must implement the spead_api_setup, spead_api_destroy, and 
  spead_api_callback functions.

  dummy
    used to receive data and format it for display in gnuplot as a 2d heat map

  ocl
    used to execute opencl kernels on spead data streams

  fft
    cuda (cufft) example used to fft a spead data stream