threads should be cpu

bwa.wdl

@@ -22,7 +22,7 @@ task BwaMem {
         File bamFile = outputPath
     }
     runtime{
-        threads: if defined(threads) then threads else 1
+        cpu: if defined(threads) then threads else 1
         memory: if defined(memory) then memory else 8
     }
 }

star.wdl

@@ -39,7 +39,7 @@ task Star {
     }
 
     runtime {
-        threads: select_first([runThreadN, 1])
+        cpu: select_first([runThreadN, 1])
         memory: select_first([memory, 10])
     }
 }
\ No newline at end of file

stringtie.wdl

@@ -28,6 +28,6 @@ task Stringtie {
     }
 
     runtime {
-        threads: select_first([threads, 1])
+        cpu: select_first([threads, 1])
     }
 }
\ No newline at end of file