Error reading FST from stream

[Hugo Stephens]

Hi, 

I am running the Librispeech S5 recipe with slurm, using the default slurm.pl the following cmd.sh

export train_cmd="slurm.pl JOB=1:4 foo.JOB.log echo JOB"

export decode_cmd="slurm.pl JOB=1:4 foo.JOB.log echo JOB"

export mkgraph_cmd="slurm.pl JOB=1:4 foo.JOB.log echo JOB"

 

I get the following error 

gmm-align-compiled --transition-scale=1.0 --acoustic-scale=0.1 --self-loop-scale=0.1 --beam=10 --retry-beam=40 --careful=false 'gmm-boost-silence --boost=1.0 1 exp/tri1_ali_10k/final.mdl - |' ark:- 'ark,s,cs:apply-cmvn  --utt2spk=ark:data/train_10k/split4/2/utt2spk scp:data/train_10k/split4/2/cmvn.scp scp:data/train_10k/split4/2/feats.scp ark:- | add-deltas  ark:- ark:- |' 'ark,t:|gzip -c >exp/tri1_ali_10k/ali.2.gz' 

gmm-boost-silence --boost=1.0 1 exp/tri1_ali_10k/final.mdl - 

WARNING (gmm-boost-silence[5.5.422~1-1badf]:main():gmm-boost-silence.cc:82) The pdfs for the silence phones may be shared by other phones (note: this probably does not matter.)

LOG (gmm-boost-silence[5.5.422~1-1badf]:main():gmm-boost-silence.cc:93) Boosted weights for 5 pdfs, by factor of 1

LOG (gmm-boost-silence[5.5.422~1-1badf]:main():gmm-boost-silence.cc:103) Wrote model to -

ERROR: FstHeader::Read: Bad FST header: [unknown]

ERROR (gmm-align-compiled[5.5.422~1-1badf]:ReadFstKaldi():fstext/kaldi-fst-io-inl.h:82) Error reading FST from stream.

I have looked online but have not been able to find much, what do you suggest?

Thank you

[Daniel Povey]

Looks to me like the program that was compiling graphs failed, likely because of out of memory, but could be something else.  There would have been an error about that elsewhere in the log.

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