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Added a '-seed' option to sample.lua to allow for an identical rerun.… #219

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Added a '-seed' option to sample.lua to allow for an identical rerun.… #219

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Added a '-seed' option to sample.lua to allow for an identical rerun.…
turbotas Mar 2, 2018
5d952d8
documented -seed flag
turbotas Mar 13, 2018
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11 changes: 11 additions & 0 deletions sample.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,23 @@ cmd:option('-temperature', 1)
cmd:option('-gpu', 0)
cmd:option('-gpu_backend', 'cuda')
cmd:option('-verbose', 0)
cmd:option('-seed', 0)
local opt = cmd:parse(arg)


local checkpoint = torch.load(opt.checkpoint)
local model = checkpoint.model

if opt.seed == 0 then
opt.seed = torch.random()
end
torch.manualSeed(opt.seed)
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Might be simpler to force a manual seed only if -seed argument is set:

if <flag set>:
  torch.manualSeed(...)
end

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I agree that this code looks odd. The reason I did this is to make sure that if you see some output that you would like to see again, and if you had the verbose flag set to report the seed, you can re-run by then including the seed - even if you didn't originally set the seed flag. So the code always sets a seed - using your provided value if you set one and a random number if you didn't (or specified zero!). I thought this was clever ;-)

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Ah okay that makes sense.


local msg
msg = string.format('Random number seed: %d', opt.seed)
if opt.verbose == 1 then print(msg) end


local msg
if opt.gpu >= 0 and opt.gpu_backend == 'cuda' then
require 'cutorch'
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