fix: nexus csv output buffering (NOAA-OWP#945)

aaraney · hellkite500 · PhilMiller · web-flow · commit 68e795604cbe · 2026-03-18T11:57:19.000-04:00
* fix: don't line buffer nexus outputs

Co-authored-by: hellkite500 &lt;nfrazier@lynker.com&gt;
Co-authored-by: Phil Miller - NOAA &lt;pmiller@lynker.com&gt;
diff --git a/src/core/SurfaceLayer.cpp b/src/core/SurfaceLayer.cpp
@@ -38,7 +38,7 @@ void ngen::SurfaceLayer::update_models()
         double contribution_at_t = features.nexus_at(id)->get_downstream_flow(cat_id, current_time_index, 100.0);
         
         if(nexus_outfiles[id].is_open()) {
-        nexus_outfiles[id] << current_time_index << ", " << current_timestamp << ", " << contribution_at_t << std::endl;
+            nexus_outfiles[id] << current_time_index << ", " << current_timestamp << ", " << contribution_at_t << "\n";
         }
 
         #if NGEN_WITH_MPI

Original file line number	Diff line number	Diff line change
`@@ -38,7 +38,7 @@ void ngen::SurfaceLayer::update_models()`
`38`	`38`	`double contribution_at_t = features.nexus_at(id)->get_downstream_flow(cat_id, current_time_index, 100.0);`
`39`	`39`
`40`	`40`	`if(nexus_outfiles[id].is_open()) {`
`41`		`- nexus_outfiles[id] << current_time_index << ", " << current_timestamp << ", " << contribution_at_t << std::endl;`
	`41`	`+ nexus_outfiles[id] << current_time_index << ", " << current_timestamp << ", " << contribution_at_t << "\n";`
`42`	`42`	`}`
`43`	`43`
`44`	`44`	`#if NGEN_WITH_MPI`