Paranoia_Parallel: a test suite for more than 100 test circuits,

running in parallel on a multi-core machine (12 min execution time
on a i9 9900, ngspice compiled with gcc, debug mode enabled.
Linux with Valgrind and Parallel are required.

paranoia_parallel/examples/various/dc_loop.sp

@@ -0,0 +1,48 @@
+testing loops
+*variables are global
+*vector reside only in the plot where they where created
+
+R1 r2 0 r = {5k + 50*TEMPER}
+V1 r2 0 1
+
+.control
+*create a new plot as our base plot
+setplot new
+set curplottitle = "crossplot"
+set plotname=$curplot
+
+* generate vector with all (here 30) elements
+let result=vector(30)
+* reshape vector to format 5 x 6
+reshape result [5][6]
+* vector to store temperature
+let tvect=vector(5)
+
+*index for storing in vectors tvect and result
+let index = 0
+
+foreach var -40 -20 0 20 40
+  set temp = $var
+  dc v1 0 5 1
+  *store name of the actual dc plot
+  set dcplotname = $curplot
+  * back to the base plot
+  setplot $plotname
+  let result[index] = {$dcplotname}.v1#branch
+  let tvect[index] = $var
+  settype current result
+  let index = index + 1
+  destroy $dcplotname
+end
+
+settype temp-sweep tvect
+setscale tvect
+
+transpose result
+
+plot result
+write dc_loop.out result[0] result[1] result[2] result[3] result[4] result[5]
+
+.endc
+
+.end