ornladios
Block selection issue when one step does not have any block
ERROR: invalid blockID 0 from steps start 2 in variable v3, check argument to Variable<T>::SetBlockID, in call to Get
The issue shows up in the next step where the variable appears again.
The examples/basics/localArray example shows this bug if the writer code is forced to omit writing a variable (v3) in step 2 in localArray_write.cpp:166-169
if (step == 2)
{
chance = 0;
}
This will result in v3 missing in step 2:
$ bpls -l localArray.bp/ -D v3
double v3 4*[__]*{__} = 0 / 3.4
step 0:
block 0: [0:8] = 0 / 0
step 1:
block 0: [0:5] = 0.1 / 0.1
block 1: [0:6] = 1.1 / 1.1
step 3:
block 0: [0:9] = 1.3 / 1.3
step 4:
block 0: [0:5] = 0.4 / 0.4
block 1: [0:5] = 1.4 / 1.4
block 2: [0:5] = 3.4 / 3.4
Then the read example fails when getting variable v3 in step 3.
$ ./bin/localArray_read
Process step 0:
...
Process step 2:
v0 has 4 blocks in step 2
block 0 size = "6" offset = "" : 0.2 0.2 0.2 0.2 0.2 0.2
block 1 size = "6" offset = "" : 1.2 1.2 1.2 1.2 1.2 1.2
block 2 size = "6" offset = "" : 2.2 2.2 2.2 2.2 2.2 2.2
block 3 size = "6" offset = "" : 3.2 3.2 3.2 3.2 3.2 3.2
v1 has 4 blocks in step 2
block 0 size = "6" offset = "" : 0.2 0.2 0.2 0.2 0.2 0.2
block 1 size = "10" offset = "" : 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
block 2 size = "5" offset = "" : 2.2 2.2 2.2 2.2 2.2
block 3 size = "10" offset = "" : 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2
v2 has 4 blocks in step 2
block 0 size = "6" offset = "" : 0.2 0.2 0.2 0.2 0.2 0.2
block 1 size = "7" offset = "" : 1.2 1.2 1.2 1.2 1.2 1.2 1.2
block 2 size = "9" offset = "" : 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2
block 3 size = "10" offset = "" : 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2
Variable v3 not found in step 2
Process step 3:
v0 has 4 blocks in step 3
block 0 size = "6" offset = "" : 0.3 0.3 0.3 0.3 0.3 0.3
block 1 size = "6" offset = "" : 1.3 1.3 1.3 1.3 1.3 1.3
block 2 size = "6" offset = "" : 2.3 2.3 2.3 2.3 2.3 2.3
block 3 size = "6" offset = "" : 3.3 3.3 3.3 3.3 3.3 3.3
v1 has 4 blocks in step 3
block 0 size = "6" offset = "" : 0.3 0.3 0.3 0.3 0.3 0.3
block 1 size = "10" offset = "" : 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3
block 2 size = "5" offset = "" : 2.3 2.3 2.3 2.3 2.3
block 3 size = "10" offset = "" : 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3
v2 has 4 blocks in step 3
block 0 size = "5" offset = "" : 0.3 0.3 0.3 0.3 0.3
block 1 size = "10" offset = "" : 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3
block 2 size = "7" offset = "" : 2.3 2.3 2.3 2.3 2.3 2.3 2.3
block 3 size = "9" offset = "" : 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3
v3 has 1 blocks in step 3
Invalid argument exception, STOPPING PROGRAM
ERROR: invalid blockID 0 from steps start 2 in variable v3, check argument to Variable<T>::SetBlockID, in call to Get
Note: This reading example uses BeginStep/EndStep to step through the steps, so no SetStepSelection() is used here. Note: The bug appears with both BP3 and BP4 engines.
This looks failing now with BP5 without even having zero block. Needs testing.