TotalView Users Guide - CI Wiki

Figure 216: Array Data
Filtering by Range of
Values
Examining and Analyzing Arrays
Filtering a Range of Values
You can also filter array values by specifying a range, as follows:
[>] low-value : [ before low-value, the low value is exclusive. Similarly, a <
before high-value makes it exclusive.
The values of low-value and high-value must be constants of type integer,
unsigned integer, or floating point. The data type of low-value must be the
same as the type of high-value, and low-value must be less than high-value. If
low-value and high-value are integer constants, you can append the letter u
or U to the value to force an unsigned comparison. The following figure
shows a filter that tells TotalView that to only display values greater than
63, but less than 512. (See Figure 216.)
Creating Array Filter Expressions
The filtering capabilities described in the previous sections are those that
you use most often. In some circumstances, you may need to create a
more general expression. When you create a filter expression, you’re creating
a Fortran or C Boolean expression that TotalView evaluates for every
element in the array or the array slice. For example, the following expression
displays all array elements whose contents are greater than 0 and less
than 50, or greater than 100 and less than 150:
($value > 0 && $value < 50) ||
($value > 100 && $value < 150)
Here’s the Fortran equivalent:
($value .gt. 0 && $value .lt. 50) .or.
($value .gt. 100 .and. $value .lt.150)
The $value variable is a special TotalView variable that represents the current
array element. You can use this value when creating expressions.
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