             reads = argv[++i];
     }
 
-    fprintf(stderr, "qgroup test... started\n");
+    log_info(stderr, "q-group test... started\n");
 
     const io::QualityEncoding qencoding = io::Phred33;
 
-    fprintf(stderr, "loading reads... started\n");
+    log_info(stderr, "  loading reads... started\n");
 
     SharedPointer<io::ReadDataStream> read_data_file(
         io::open_read_file(

    // build its device version
    io::ReadDataCUDA d_read_data( *h_read_data );

    fprintf(stderr, "loading reads... done\n");

    // fetch the actual string
    typedef io::ReadData::const_read_stream_type string_type;

    timer.stop();
    const float time = timer.seconds();

    log_info(stderr, "  building q-group... done: %.1f M qgrams/s\n", 1.0e-6f * float( string_len ) / time);

    log_info(stderr, "q-group test... done\n" );
    return 0;
}

