is @info broken???

src/callbacks/callbacks.jl

@@ -23,29 +23,33 @@ Returns a callback to display simulation information.
 Adapted from ClimaTimeSteppers.jl #89.
 """
 function display_status_callback!(::Type{tType}) where {tType}
-    start_time = UInt64(0.0)
-    prev_time = UInt64(0.0)
-    prev_t = tType(0.0)
-    is_first_step = true
+    start_time = Ref{UInt64}()
+    prev_time = Ref{UInt64}()
+    prev_t = Ref{tType}()
+    is_not_first_step = Ref{Bool}()
 
     function affect!(integrator)
-        # time = time_ns() / 1e9
-        # if is_first_step
-        #     is_first_step = false
-        #     start_time = time
-        # end
-
-        # t_end = maximum(integrator.tstops.valtree)
-        # nsteps = floor(Int64, t_end / integrator.dt)
-
-        # @info "$(Dates.format(Dates.now(), "HH:MM:SS:ss u d")) \n\
-        # Timestep: $(integrator.step) / $(nsteps); Simulation Time: $(integrator.t) seconds \n\
-        # Walltime: $(round(time - start_time, digits=4)) seconds; \
-        # Time/Step: $(round((time - start_time) / nsteps, digits=4)) seconds \n"
-        # # Time Remaining: $(prev_time == 0.0 ? "..." : string(round(Int64, (time - prev_time) / (integrator.t - prev_t) * (t_end - integrator.t))) * " seconds")"
-
-        # prev_t = integrator.t
-        # prev_time = time
+        time = round(UInt64, time_ns() / 1e9)
+        if !(is_not_first_step[])
+            is_not_first_step[] = true
+            start_time[] = time
+        end
+
+        t_end = maximum(integrator.tstops.valtree)
+        nsteps = floor(Int64, t_end / integrator.dt)
+        speed = (time - prev_time[]) / (integrator.t - prev_t[])
+        eta = speed * (t_end - integrator.t)
+
+        println("$(Dates.format(Dates.now(), "HH:MM:SS:ss u d")) \n\
+        Timestep: $(integrator.step) / $(nsteps); \
+        Simulation Time: $(integrator.t) seconds \n\
+        Walltime: $(round(time - start_time[], digits=4)) seconds; \
+        Time/Step: $(round((time - start_time[]) / nsteps, digits=4)) seconds \n\
+        # Time Remaining: $(eta == Inf ? "..." : 
+        string(round((time - prev_time[]) / (integrator.t - prev_t[]) * (t_end - integrator.t))) * " seconds")")
+
+        prev_t[] = integrator.t
+        prev_time[] = time
     end
     return affect!
 end