PSATD: current correction works only with global FFTs (#1131)

* Clean up implementation of current correction:

- abort when current correction runs with psatd.periodic_single_box_fft=0
- rename input parameter from psatd.do_current_correction to psatd.current_correction
- add nodal tests in 2D and 3D (using direct current deposition)
- change 2D test: use Esirkepov deposition, instead of direct, as in 3D test
- add/update relevant checksum benchmarks

* Small clean-up

1 files changed, 1 insertions, 1 deletions

diff --git a/Source/WarpX.cpp b/Source/WarpX.cpp
index 1c5002076..9999dd40b 100644
--- a/Source/WarpX.cpp
+++ b/Source/WarpX.cpp
@@ -605,7 +605,7 @@ WarpX::ReadParameters ()
         pp.query("nox", nox_fft);
         pp.query("noy", noy_fft);
         pp.query("noz", noz_fft);
-        pp.query("do_current_correction", do_current_correction);
+        pp.query("current_correction", current_correction);
         pp.query("v_galilean", v_galilean);
       // Scale the velocity by the speed of light
         for (int i=0; i<3; i++) v_galilean[i] *= PhysConst::c;