[misc] fix: address cuichenx PR review comments for MiniMax-M2

- Remove dtype-mismatch silencing in hf_megatron_roundtrip_multi_gpu.py:
  only cast to float32 for params listed in IGNORE_PRECISION_PARAMS,
  not silently whenever dtypes differ (which would hide real issues)
- Remove /lustre reference from MiniMax-M2 slurm_conversion.sh example mount

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: yaoyu-33 <yaoyu.094@gmail.com>

Author: yaoyu-33

examples/conversion/hf_megatron_roundtrip_multi_gpu.py

@@ -166,9 +166,9 @@ def main(
             original_param = bridge.hf_pretrained.state[name]
             compare_param = param
             compare_original = original_param
-            # Cast to float32 when dtypes differ (e.g. fp8 HF weights vs bf16 Megatron,
-            # or Megatron keeping expert_bias in float32 while HF uses bfloat16)
-            if compare_param.dtype != compare_original.dtype or any(p in name for p in IGNORE_PRECISION_PARAMS):
+            # Cast to float32 for params with known precision mismatches.
+            # Any new known mismatch should be recorded in IGNORE_PRECISION_PARAMS above.
+            if any(p in name for p in IGNORE_PRECISION_PARAMS):
                 compare_param = param.float()
                 compare_original = original_param.float()
             match = torch.allclose(compare_param, compare_original.to(compare_param.device), atol=1e-1)

examples/models/minimax_m2/slurm_conversion.sh

@@ -43,7 +43,7 @@
 CONTAINER_IMAGE=""
 # CONTAINER_IMAGE="/path/to/container.sqsh"
 CONTAINER_MOUNTS=""
-# CONTAINER_MOUNTS="/lustre:/lustre,/path/to/project:/opt/Megatron-Bridge"
+# CONTAINER_MOUNTS="/path/to/shared/storage:/mnt/storage,/path/to/project:/opt/Megatron-Bridge"
 WORKDIR="/opt/Megatron-Bridge"
 
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