Gedae Advanced Course Extra Tokens at EOS

1
Gedae Advanced CourseExtra Tokens at EOS

• Kerry Barnes
• [phone]
• gedae_at_gedae.com

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Segmentation and Granularity

• Segmented subgraph inputs may have a non-integer
  decimate rate the number of tokens needed to
  execute at the natural granularity
• The segment length may not be an even multiple of
  the decimate rate
• Default behavior is to drop the remaining tokens

processed
segmenter
s_v
in
out
in
out
e
f
g
h
a
b
c
d
e
f
b
c
d
g
c
N
4
1
1
1
0
0
1
1
1
dropped
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Segmentation and Granularity

• This filter processes multiples of N-Ovl data
  samples

• Data that cant be processed is dropped at the
  end-of-segment

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Segmentation and Granularity

• At eos excess tokens that cant be processed are
  drained
• The natural granularity is 1536 so 368 of the
  1904 tokens left at eos are drained
• Red dot on s_xltin queue represents a draining
  event

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Segmentation and Padding

• Segmented subgraph inputs may have a non-integer
  decimate rate the number of tokens needed to
  execute at the natural granularity
• The segment length may not be an even multiple of
  the decimate rate
• Default behavior is to drop the remaining tokens

Multiple of 4 required
segmenter
pad
in
out
in
out
e
f
b
c
d
g
e
f
b
c
d
g
0
0
c
Padding input
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Segmentation and Padding

• A padding input prevents tokens from being
  dropped at eos
• At eos pad box consumes remaining tokens but
  fires at its natural granularity
• pad box is informed as to the number of valid
  tokens on its input queue
• It zero fills output to snap up to full
  granularity

Pad fires at natural granularity of 1536
Available 368 tokens consumed at eos
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Pad Box

• Name pad
• Type static
• Input
• padding stream float in
• Output
• stream float out
• Include
• include lte_vmov.hgt
• include lte_vclr.hgt
• Apply
• int ain avail(in)
• e_vmov(in,1,out,1,ain)
• e_vclr(outain,1,granularity-ain)

Keyword padding marks stream as a padding
stream The avail function tells how many input
tokens are available Valid tokens are copied from
input to output At EOS when ain!granularity the
final granularityain tokens are cleared on output