queue 10
{endcode}
-Simple math can use $$([]), in which case you'll use ProcId instead of $(Process). For example, this passes two arguments, the first starts a 1 and increases by 1 for each job, the second starts at 0 and increases by 2 for each job:
+As of HTCondor 8.3.5 you can do simple math in the submit file using $INT() or $REAL(). The technique is to use a temporary variable to declare the mathematical expressions, and then refer to the temporary variable using the $INT() or $REAL() macro expansion to evaluate and print the result. The $INT() and $REAL() expansions take an optional argument to control the formatting of the result.
+
+{code}
+executable = myprogram.exe
+tmp1 = $(Process) + 1
+tmp2 = $(Process) * 2.0
+arguments = $INT(tmp1) $REAL(tmp2,%.3f)
+queue 10
+{endcode}
+
+Prior to 8.3.5 you can do math by using the deferred expansion of
+$$([]), in which case you'll use $(ProcId) instead of $(Process). For example, this passes two arguments, the first starts a 1 and increases by 1 for each job, the second starts at 0 and increases by 2 for each job:
{code}
executable = myprogram.exe
@@ -18,6 +29,26 @@
queue 10
{endcode}
+{section: Selection from a list}
+In versions of HTCondor starting with 8.3.5, you can use the Process variable to select an item from a list using the $CHOICE() macro.
+
+In this example, there will be 6 jobs submitted, the first will have arguments=Alan, the second will have arguments=Betty, etc.
+
+{code}
+executable = myprogram.exe
+arguments = $CHOICE(Process, Alan, Betty, Claire, Dan, Eva, Frank)
+queue 6
+{endcode}
+
+The list can also be a submit variable like this. This example produces the same resulting jobs as the above example.
+
+{code}
+executable = myprogram.exe
+arguments = $CHOICE(Process, Names)
+Names = Alan, Betty, Claire, John, Harry, Sally
+queue 6
+{endcode}
+
{section: Random selection}
If you want each job to have a randomly assigned argument, you can use $RANDOM_CHOICE. The random selection is not guaranteed to be cryptographically strong, nor necessarily suitable for scientific use.
@@ -30,9 +61,9 @@
queue 10
{endcode}
-{section: Permute a list}
+{section: Permute a list (pre 8.3.5 method)}
-If you want to permute some other element, you can use $$([ ]) to evalute arbitrary ClassAd expressions. This is particularly useful combined with lists. If you wanted to permute the 3 names, you could do this:
+Prior to 8.3.5 If you want to permute some other element, you can use $$([ ]) to evalute arbitrary ClassAd expressions. This is particularly useful combined with lists. If you wanted to permute the 3 names, you could do this:
{code}
executable = myprogram.exe
