From e2b51a619ccf278232ec03bb2798a92eb0ac6edd Mon Sep 17 00:00:00 2001
From: Minh Vu <vuhoangminh97@gmail.com>
Date: Wed, 24 Jun 2026 00:06:08 +0200
Subject: [PATCH] Fix pipelined transpose empty rank skips

Signed-off-by: Minh Vu <vuhoangminh97@gmail.com>
---
 include/internal/comm_routines.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/internal/comm_routines.h b/include/internal/comm_routines.h
index e645872..c6529b5 100644
--- a/include/internal/comm_routines.h
+++ b/include/internal/comm_routines.h
@@ -445,6 +445,7 @@ cudecompAlltoallPipelined(const cudecompHandle_t& handle, const cudecompGridDesc
                           cudecompTransposePerformanceSample* current_sample = nullptr) {
 
   // If there are no transfers to complete, quick return
+  if (src_ranks.empty()) { return; }
   if (send_counts.size() == 0 && recv_counts.size() == 0) { return; }
 
   std::ostringstream os;