fix bug det train

tools/program.py

@@ -256,15 +256,15 @@ def train_eval_det_run(config, exe, train_info_dict, eval_info_dict):
                 t2 = time.time()
                 train_batch_elapse = t2 - t1
                 train_stats.update(stats)
-                if train_batch_id > start_eval_step and (train_batch_id -start_eval_step)  \
+                if train_batch_id > 0 and train_batch_id  \
                     % print_batch_step == 0:
                     logs = train_stats.log()
                     strs = 'epoch: {}, iter: {}, {}, time: {:.3f}'.format(
                         epoch, train_batch_id, logs, train_batch_elapse)
                     logger.info(strs)
 
-                if train_batch_id > 0 and\
+                if train_batch_id > start_eval_step and\
-                    train_batch_id % eval_batch_step == 0:
+                    (train_batch_id - start_eval_step) % eval_batch_step == 0:
                     metrics = eval_det_run(exe, config, eval_info_dict, "eval")
                     hmean = metrics['hmean']
                     if hmean >= best_eval_hmean: