some cosmetic changes: add comments to RNNLM rescoring utilities to refer to...

some cosmetic changes: add comments to RNNLM rescoring utilities to refer to each other; improve messages printed out by 'configure'

egs/wsj/s5/steps/lmrescore_rnnlm_lat.sh

@@ -3,7 +3,8 @@
 # Copyright 2015  Guoguo Chen
 # Apache 2.0
 
-# This script rescores lattices with RNNLM.
+# This script rescores lattices with RNNLM.  See also rnnlmrescore.sh which is
+# an older script using n-best lists.
 
 # Begin configuration section.
 cmd=run.pl

egs/wsj/s5/steps/rnnlmrescore.sh

 #!/bin/bash
 
+# please see lmrescore_rnnlm_lat.sh which is a newer script using lattices.
 
 # Begin configuration section.
 N=10
@@ -104,14 +105,14 @@ if [ "$oldlm" == "$oldlang/G.fst" ]; then
     if [ $stage -le 2 ]; then
       echo "$0: removing old LM scores."
       # Use the phi-matcher style of composition.. this is appropriate
-      # if the old LM scores were added e.g. by lmrescore.sh, using 
+      # if the old LM scores were added e.g. by lmrescore.sh, using
       # phi-matcher composition.
       $cmd JOB=1:$nj $dir/log/remove_old.JOB.log \
         lattice-scale --acoustic-scale=-1 --lm-scale=-1 "ark:gunzip -c $dir/nbest1.JOB.gz|" ark:- \| \
         lattice-compose --phi-label=$phi ark:- $oldlm ark:- \| \
         lattice-scale --acoustic-scale=-1 --lm-scale=-1 ark:- "ark:|gzip -c >$dir/nbest2.JOB.gz" \
         || exit 1;
-    fi    
+    fi
   else
     if [ $stage -le 2 ]; then
       echo "$0: removing old LM scores."
@@ -189,7 +190,7 @@ if [ $stage -le 7 ]; then
   echo "$0: reconstructing total LM+graph scores including interpolation of RNNLM and old LM scores."
   for n in `seq $nj`; do
     paste $adir.$n/lmwt.nolm $adir.$n/lmwt.lmonly $adir.$n/lmwt.rnn | awk -v rnnweight=$rnnweight \
-      '{ key=$1; graphscore=$2; lmscore=$4; rnnscore=$6; 
+      '{ key=$1; graphscore=$2; lmscore=$4; rnnscore=$6;
      score = graphscore+(rnnweight*rnnscore)+((1-rnnweight)*lmscore);
      print $1,score; } ' > $adir.$n/lmwt.interp.$rnnweight || exit 1;
   done

src/configure

@@ -439,7 +439,7 @@ function configure_cuda {
     # Determine 'CUDA_ARCH',
     CUDA_VERSION=$($CUDATKDIR/bin/nvcc -V | tr '.,' '_ ' | awk '/release/{sub(/.*release/,""); print $1;}') # MAJOR_MINOR,
     if [ -z "$CUDA_VERSION" ] ; then
-      echo "Cannot figure out CUDA_VERSION from the nvcc output. Either your CUDA is too new or too old." 
+      echo "Cannot figure out CUDA_VERSION from the nvcc output. Either your CUDA is too new or too old."
       exit 1
     fi
 
@@ -485,7 +485,8 @@ function linux_configure_speex {
     spx_type=so
   fi
   if [ ! -f "$SPEEXLIBDIR/libspeex.${spx_type}" ];then
-    echo "Static=[$static_speex] Speex library not found: You can still build Kaldi without Speex."
+    echo "Info: configuring Kaldi not to link with Speex (don't worry, it's only needed if you"
+    echo "intend to use 'compress-uncompress-speex', which is very unlikely)"
     return
   fi
 
@@ -726,7 +727,7 @@ function linux_check_dynamic {
         return 0;
       fi
   done
-  echo "... no {libatlas,lib${pt}atlas}.so in $dir";
+  # echo "... no {libatlas,lib${pt}atlas}.so in $dir";
   return 1;
 }