Do not print advancement when decoding dev

trainer/src/Trainer.cpp

@@ -133,7 +133,10 @@ float Trainer::processDataset(DataLoader & loader, bool train, bool printAdvance
         auto actualTime = std::chrono::high_resolution_clock::now();
         double seconds = std::chrono::duration<double, std::milli>(actualTime-pastTime).count() / 1000.0;
         pastTime = actualTime;
-        fmt::print(stderr, "\rcurrent epoch : {:6.2f}% loss={:<7.3f} speed={:<5}ex/s", 100.0*(currentBatchNumber*batchSize)/nbExamples, lossSoFar, (int)(nbExamplesProcessed/seconds));
+        if (train)
+          fmt::print(stderr, "\rcurrent epoch : {:6.2f}% loss={:<7.3f} speed={:<6}ex/s", 100.0*(currentBatchNumber*batchSize)/nbExamples, lossSoFar, (int)(nbExamplesProcessed/seconds));
+        else
+          fmt::print(stderr, "\reval on dev : loss={:<7.3f} speed={:<6}ex/s", lossSoFar, (int)(nbExamplesProcessed/seconds));
         lossSoFar = 0;
         nbExamplesProcessed = 0;
       }