Add caching and swap to torch==2.8.0+cpu

Author: simonge

benchmarks/lowq2_reconstruction/Snakefile

@@ -13,6 +13,7 @@ rule filter_hepmc_for_training:
         script=workflow.source_path("filterHEPMC3.py"),        
     output:
         SIMOUTDIR+"Low-Q2_Training_Events.hepmc3.tree.root",
+    cache: True
     params:
         events="root://dtn-eic.jlab.org//volatile/eic/EPIC/EVGEN/SIDIS/pythia6-eic/1.0.0/18x275/q2_0to1/pythia_ep_noradcor_18x275_q2_0.000000001_1.0_run1.ab.hepmc3.tree.root",
     shell:
@@ -27,6 +28,7 @@ rule lowq2_training_sim:
         events=SIMOUTDIR+"Low-Q2_Training_Events.hepmc3.tree.root",      
     output:
         SIMOUTDIR+"Low-Q2_Training_SimEvents_{CAMPAIGN}.edm4hep.root",
+    cache: True
     shell:
         """
             exec npsim \

benchmarks/lowq2_reconstruction/requirements.txt

@@ -1,7 +1,7 @@
 --index-url https://download.pytorch.org/whl/cpu
 numpy==2.3.1
 #gpu version of torch on eicweb doesn't speed up things for our small model and takes a long time to install
-torch==2.5.1 
+torch==2.8.0+cpu 
 uproot==5.6.3
 pyHepMC3==3.3.0
 onnx==1.17.0