From aa9cca4498776b8f320b35f71adfccf8f9f4fa6a Mon Sep 17 00:00:00 2001
From: Zheyong Fan <brucenju@gmail.com>
Date: Tue, 20 Sep 2022 04:09:30 +0800
Subject: [PATCH] =?UTF-8?q?fix=20a=20bug=20about=20sdc=20when=20num?=
 =?UTF-8?q?=E2=80=94=5Fatom*run=5Fsteps=20is=20too=20large?=
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---
 src/measure/sdc.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/measure/sdc.cu b/src/measure/sdc.cu
index 890bcbd3f..71b839bda 100644
--- a/src/measure/sdc.cu
+++ b/src/measure/sdc.cu
@@ -194,7 +194,7 @@ void SDC::postprocess(const char* input_dir)
   CHECK(cudaDeviceSynchronize()); // needed for pre-Pascal GPU
 
   // normalize by the number of atoms and number of time origins
-  const double vac_scaler = 1.0 / (num_atoms_ * num_time_origins_);
+  const double vac_scaler = 1.0 / ((double)num_atoms_ * (double)num_time_origins_);
   for (int nc = 0; nc < num_correlation_steps_; nc++) {
     vacx_[nc] *= vac_scaler;
     vacy_[nc] *= vac_scaler;