CI: Clean out Pip Caches (#5110)

* Debugging CI tests

* Run all Cartesian 3D tests

* Clear cache after python installation commands

* Update Regression/WarpX-tests.ini

* `run_test.sh`: Detailed `df -h` Prints

* Update checksum

* Cleanup

---------

Co-authored-by: Remi Lehe <remi.lehe@normalesup.org>
Co-authored-by: Axel Huebl <axel.huebl@plasma.ninja>

Regression/Checksum/benchmarks_json/collisionXYZ.json

@@ -6,25 +6,25 @@
     "Ex": 0.0,
     "Ey": 0.0,
     "Ez": 0.0,
-    "T_electron": 381957.7394223898,
-    "T_ion": 319565.6269784763
+    "T_electron": 351982.0169218243,
+    "T_ion": 349599.6939052666
   },
   "electron": {
-    "particle_momentum_x": 8.631833485301232e-19,
-    "particle_momentum_y": 8.476316745254719e-19,
-    "particle_momentum_z": 8.514139891331418e-19,
-    "particle_position_x": 21253105.73686561,
-    "particle_position_y": 21282643.519070115,
-    "particle_position_z": 21239057.457948968,
+    "particle_momentum_x": 8.359982321196841e-19,
+    "particle_momentum_y": 8.192841151167721e-19,
+    "particle_momentum_z": 8.182985690701241e-19,
+    "particle_position_x": 21255110.08090505,
+    "particle_position_y": 21303488.6242626,
+    "particle_position_z": 21238676.122703437,
     "particle_weight": 7.168263344048695e+28
   },
   "ion": {
-    "particle_momentum_x": 1.9215585867122464e-18,
-    "particle_momentum_y": 1.7471481568315848e-18,
-    "particle_momentum_z": 1.7510887207292533e-18,
-    "particle_position_x": 21228900.948879313,
-    "particle_position_y": 21304564.011731848,
-    "particle_position_z": 21250585.221808463,
+    "particle_momentum_x": 2.0034830240966893e-18,
+    "particle_momentum_y": 1.8323959076577197e-18,
+    "particle_momentum_z": 1.827953230828629e-18,
+    "particle_position_x": 21246214.748882487,
+    "particle_position_y": 21280709.710960124,
+    "particle_position_z": 21206153.002106402,
     "particle_weight": 7.168263344048695e+28
   }
 }

Regression/WarpX-tests.ini

@@ -3952,16 +3952,16 @@ useOMP = 1
 numthreads = 1
 analysisRoutine = Examples/Tests/particle_thermal_boundary/analysis_2d.py
 
-#[openbc_poisson_solver]
-#buildDir = .
-#inputFile = Examples/Tests/openbc_poisson_solver/inputs_3d
-#runtime_params = warpx.abort_on_warning_threshold = high
-#dim = 3
-#addToCompileString = USE_OPENPMD=TRUE USE_FFT=TRUE
-#cmakeSetupOpts = -DWarpX_DIMS=3 -DWarpX_FFT=ON -DWarpX_OPENPMD=ON
-#restartTest = 0
-#useMPI = 1
-#numprocs = 2
-#useOMP = 1
-#numthreads = 1
-#analysisRoutine = Examples/Tests/openbc_poisson_solver/analysis.py
+[openbc_poisson_solver]
+buildDir = .
+inputFile = Examples/Tests/openbc_poisson_solver/inputs_3d
+runtime_params = warpx.abort_on_warning_threshold = high
+dim = 3
+addToCompileString = USE_OPENPMD=TRUE USE_FFT=TRUE
+cmakeSetupOpts = -DWarpX_DIMS=3 -DWarpX_FFT=ON -DWarpX_OPENPMD=ON
+restartTest = 0
+useMPI = 1
+numprocs = 2
+useOMP = 1
+numthreads = 1
+analysisRoutine = Examples/Tests/openbc_poisson_solver/analysis.py

run_test.sh

@@ -65,6 +65,7 @@ python3 -m pip install --upgrade pip
 python3 -m pip install --upgrade build packaging setuptools wheel
 python3 -m pip install --upgrade cmake
 python3 -m pip install --upgrade -r warpx/Regression/requirements.txt
+python3 -m pip cache purge
 
 # Clone AMReX and warpx-data
 git clone https://github.com/AMReX-Codes/amrex.git