Exp of sum of logs

Time bar (total: 1.5s)

analyze1.0ms (0%)

Algorithm
search
Search
ProbabilityValidUnknownPreconditionInfiniteDomainCan'tIter
0%0%99.9%0.1%0%0%0%0
0%0%99.9%0.1%0%0%0%1
0%0%50%0.1%0%50%0%2
100%25%0%0.1%0%74.9%0%3
Compiler

Compiled 9 to 7 computations (22.2% saved)

Precisions
Click to see histograms. Total time spent on operations: 0.0ms
ival-log: 0.0ms (0% of total)
ival-add: 0.0ms (0% of total)
ival-exp: 0.0ms (0% of total)
const: 0.0ms (0% of total)
backward-pass: 0.0ms (0% of total)

sample1.2s (77.1%)

Results
863.0ms8256×0valid
Precisions
Click to see histograms. Total time spent on operations: 437.0ms
ival-log: 245.0ms (56% of total)
ival-exp: 103.0ms (23.5% of total)
ival-add: 79.0ms (18.1% of total)
const: 8.0ms (1.8% of total)
backward-pass: 3.0ms (0.7% of total)
Bogosity

preprocess23.0ms (1.6%)

Algorithm
egg-herbie
Rules
64×fnmsub-define
64×fmsub-define
64×fnmadd-define
46×fma-define
32×fmm-def
Iterations

Useful iterations: 1 (0.0ms)

IterNodesCost
01838
13820
27120
311220
420220
528620
631820
066
1103
2133
0133
Stop Event
iter limit
saturated
saturated
Calls
Call 1
Inputs
(exp (+ (log a) (log b)))
Outputs
(exp (+ (log a) (log b)))
(*.f64 a b)
Call 2
Inputs
(exp (+ (log a) (log b)))
(exp (+ (log (neg a)) (log b)))
(exp (+ (log a) (log (neg b))))
(neg (exp (+ (log (neg a)) (log b))))
(neg (exp (+ (log a) (log (neg b)))))
(exp (+ (log b) (log a)))
Outputs
(exp (+ (log a) (log b)))
(* a b)
(exp (+ (log (neg a)) (log b)))
(fnmsub a b 0)
(exp (+ (log a) (log (neg b))))
(fnmsub a b 0)
(neg (exp (+ (log (neg a)) (log b))))
(* a b)
(neg (exp (+ (log a) (log (neg b)))))
(* a b)
(exp (+ (log b) (log a)))
(* a b)
Symmetry

(negabs a)

(negabs b)

(sort a b)

explain140.0ms (9.3%)

FPErrors
Click to see full error table
Ground TruthOverpredictionsExampleUnderpredictionsExampleSubexpression
14421(5.410762714773463e-207 8.593012465932442e+110)16(8.224953007827038e-29 0.06146326949689722)(exp.f64 (+.f64 (log.f64 a) (log.f64 b)))
20-1(6.577879886745123e-213 1.0378667998905566e+217)(+.f64 (log.f64 a) (log.f64 b))
00-0-(log.f64 b)
00-0-(log.f64 a)
00-0-b
00-0-a
Results
94.0ms512×0valid
Compiler

Compiled 48 to 20 computations (58.3% saved)

Precisions
Click to see histograms. Total time spent on operations: 21.0ms
ival-log: 13.0ms (61.2% of total)
ival-exp: 5.0ms (23.5% of total)
ival-add: 3.0ms (14.1% of total)
const: 1.0ms (4.7% of total)
backward-pass: 0.0ms (0% of total)

eval0.0ms (0%)

Compiler

Compiled 5 to 3 computations (40% saved)

prune1.0ms (0%)

Alt Table
Click to see full alt table
StatusAccuracyProgram
100.0%
(*.f64 a b)
Compiler

Compiled 5 to 3 computations (40% saved)

simplify3.0ms (0.2%)

Algorithm
egg-herbie
Localize:

Found 1 expressions of interest:

NewMetricScoreProgram
cost-diff0
(*.f64 a b)
Rules
*-lowering-*.f32
*-lowering-*.f64
*-commutative
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
035
145
045
Stop Event
iter limit
saturated
Calls
Call 1
Inputs
(* a b)
a
b
Outputs
(* a b)
(*.f64 a b)
a
b

localize21.0ms (1.4%)

Localize:

Found 1 expressions of interest:

NewMetricScoreProgram
accuracy100.0%
(*.f64 a b)
Results
16.0ms256×0valid
Compiler

Compiled 8 to 4 computations (50% saved)

Precisions
Click to see histograms. Total time spent on operations: 3.0ms
ival-mult: 3.0ms (104.8% of total)
const: 0.0ms (0% of total)
backward-pass: 0.0ms (0% of total)

series3.0ms (0.2%)

Counts
1 → 24
Calls
Call 1
Inputs
#<alt (* a b)>
Outputs
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
#<alt (* a b)>
Calls

6 calls:

TimeVariablePointExpression
1.0ms
b
@-inf
(* a b)
1.0ms
a
@inf
(* a b)
0.0ms
a
@0
(* a b)
0.0ms
a
@-inf
(* a b)
0.0ms
b
@inf
(* a b)

rewrite26.0ms (1.8%)

Algorithm
batch-egg-rewrite
Rules
*-lowering-*.f32
*-lowering-*.f64
*-commutative
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
033
143
043
Stop Event
iter limit
saturated
Counts
1 → 2
Calls
Call 1
Inputs
(* a b)
Outputs
(*.f64 a b)
(*.f64 b a)

simplify4.0ms (0.3%)

Algorithm
egg-herbie
Rules
*-lowering-*.f32
*-lowering-*.f64
*-commutative
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
0372
1472
0472
Stop Event
iter limit
saturated
Counts
24 → 24
Calls
Call 1
Inputs
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
(* a b)
Outputs
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)
(* a b)
(*.f64 a b)

eval2.0ms (0.1%)

Compiler

Compiled 80 to 4 computations (95% saved)

prune1.0ms (0.1%)

Pruning

1 alts after pruning (0 fresh and 1 done)

PrunedKeptTotal
New26026
Fresh000
Picked011
Done000
Total26127
Accuracy
100.0%
Counts
27 → 1
Alt Table
Click to see full alt table
StatusAccuracyProgram
100.0%
(*.f64 a b)
Compiler

Compiled 16 to 10 computations (37.5% saved)

regimes20.0ms (1.3%)

Accuracy

Total -4.8b remaining (-∞%)

Threshold costs -4.8b (-∞%)

Counts
2 → 1
Calls
Call 1
Inputs
(*.f64 a b)
(exp.f64 (+.f64 (log.f64 a) (log.f64 b)))
Outputs
(*.f64 a b)
Calls

6 calls:

11.0ms
(exp.f64 (+.f64 (log.f64 a) (log.f64 b)))
2.0ms
b
2.0ms
(log.f64 a)
1.0ms
(log.f64 b)
1.0ms
(+.f64 (log.f64 a) (log.f64 b))
Results
AccuracySegmentsBranch
100.0%1a
100.0%1b
100.0%1(exp.f64 (+.f64 (log.f64 a) (log.f64 b)))
100.0%1(+.f64 (log.f64 a) (log.f64 b))
100.0%1(log.f64 a)
100.0%1(log.f64 b)
Compiler

Compiled 29 to 21 computations (27.6% saved)

simplify6.0ms (0.4%)

Algorithm
egg-herbie
Rules
*-commutative_binary64
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
033
143
Stop Event
saturated
Calls
Call 1
Inputs
(*.f64 a b)
Outputs
(*.f64 a b)

soundness4.0ms (0.2%)

Rules
exp-lowering-exp.f32
exp-lowering-exp.f64
+-lowering-+.f64
log-lowering-log.f64
*-lowering-*.f32
Iterations

Useful iterations: 1 (0.0ms)

IterNodesCost
066
1103
2133
0133
Stop Event
done
iter limit
saturated
Compiler

Compiled 10 to 6 computations (40% saved)

preprocess90.0ms (6%)

Remove

(sort a b)

(negabs b)

(negabs a)

Compiler

Compiled 96 to 60 computations (37.5% saved)

end0.0ms (0%)

Profiling

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