P-Label	Meaning (microbenchmarks with data races)	P-Label	Meaning (microbenchmarks without data races)
Y1	Unresolvable dependencies	N1	Embarrassingly parallel or single thread execution
Y2	Missing data sharing clauses	N2	Use of data sharing clauses
Y3	Missing synchronization	N3	Use of synchronization
Y4	SIMD data races	N4	Use of SIMD directives
Y5	Accelerator data races	N5	Use of accelerator directives
Y6	Undefined behavior	N6	Use of special language features
Y7	Numerical kernel data races	N7	Numerical kernels

Microbenchmarks with known data races (some have a varying length version)

Microbenchmark	P-Label	Description	Source
DRB001-antidep1-orig-yes.f95	Y1	Anti-dependence within a single loop	New
DRB002-antidep1-var-yes.f95	Y1	Anti-dependence within a single loop	New
DRB003-antidep2-orig-yes.f95	Y1	Anti-dependence within a two-level loop nest	New
DRB004-antidep2-var-yes.f95	Y1	Anti-dependence within a two-level loop nest	New
DRB005-indirectaccess1-orig-yes.f95	Y7	Indirect access with overlapped index array elements	New
DRB006-indirectaccess2-orig-yes.f95	Y7	Overlapping index array elements when 36 or more threads are used	New
DRB007-indirectaccess3-orig-yes.f95	Y7	Overlapping index array elements when 60 or more threads are used	New
DRB008-indirectaccess4-orig-yes.f95	Y7	Overlapping index array elements when 180 or more threads are used	New
DRB009-lastprivatemissing-orig-yes.f95	Y2	Data race due to a missing lastprivate() clause	New
DRB010-lastprivatemissing-var-yes.f95	Y2	Data race due to a missing lastprivate() clause	New
DRB011-minusminus-orig-yes.f95	Y3	Unprotected decrement operation, var = var - 1	New
DRB012-minusminus-var-yes.f95	Y3	Unprotected decrement operation, var = var - 1	New
DRB013-nowait-orig-yes.f95	Y3	Missing barrier due to a wrongfully used nowait	New
DRB014-outofbounds-orig-yes.f95	Y6	Out of bound access of the 2nd dimension of array	New
DRB015-outofbounds-var-yes.f95	Y6	Out of bound access of the 2nd dimension of array	New
DRB016-outputdep-orig-yes.f95	Y1	Output dependence and true dependence within a loop	New
DRB017-outputdep-var-yes.f95	Y1	Output dependence and true dependence within a loop	New
DRB018-plusplus-orig-yes.f95	Y1	increment operation on array index variable, var = var + 1	New
DRB019-plusplus-var-yes.f95	Y1	increment operation on array index variable, var = var + 1	New
DRB020-privatemissing-var-yes.f95	Y2	Missing private() for a temp variable	New
DRB021-reductionmissing-orig-yes.f95	Y2	Missing private() for a temp variable	New
DRB022-reductionmissing-var-yes.f95	Y2	Missing reduction() for a variable	New
DRB023-sections1-orig-yes.f95	Y2	Missing reduction() for a variable	New
DRB024-simdtruedep-orig-yes.f95	Y3	Unprotected data writes in parallel sections	New
DRB025-simdtruedep-var-yes.f95	Y1,Y4	SIMD instruction level data races	New
DRB026-targetparallelfor-orig-yes.f95	Y1,Y4	SIMD instruction level data races	New
DRB027-taskdependmissing-orig-yes.f95	Y1,Y5	Data races in loops offloaded to accelerators	New
DRB028-privatemissing-orig-yes.f95	Y3	Unprotected data writes in two tasks	New
DRB029-truedep1-orig-yes.f95	Y1	True data dependence among multiple array elements within a single level loop	New
DRB030-truedep1-var-yes.f95	Y1	True data dependence among multiple array elements within a single level loop	New
DRB031-truedepfirstdimension-(orig|var)-yes.f95	Y1	True data dependence of first dimension for a 2-D array accesses	New
DRB032-truedepfirstdimension-(orig|var)-yes.f95	Y1	True data dependence of first dimension for a 2-D array accesses	New
DRB033-truedeplinear-orig-yes.f95	Y1	Linear equation as array subscript	New
DRB034-truedeplinear-var-yes.f95	Y1	Linear equation as array subscript	New
DRB035-truedepscalar-orig-yes.f95	Y1	True data dependence due to scalar	New
DRB036-truedepscalar-var-yes.f95	Y1	True data dependence due to scalar	New
DRB037-truedepseconddimension-(orig|var)-yes.f95	Y1	True data dependence on 2nd dimension of a 2-D array accesses	New
DRB038-truedepseconddimension-(orig|var)-yes.f95	Y1	True data dependence on 2nd dimension of a 2-D array accesses	New
DRB039-truedepsingleelement-(orig|var)-yes.f95	Y1	True data dependence due to a single array element	New
DRB040-truedepsingleelement-(orig|var)-yes.f95	Y1	True data dependence due to a single array element	New
DRB073-doall2-orig-yes.f95	Y2	Missing private() for inner loop nest's loop index variable	New
DRB074-flush-orig-yes.f95	Y2	Reduction using a shared variable, extracted from an official OpenMP example	New
DRB075-getthreadnum-orig-yes.f95	Y1	Work sharing within one branch of a if statement	New
DRB080-func-arg-orig-yes.f95	Y6	Function arguments passed by reference, inheriting shared attribute	New
DRB082-declared-in-func-orig-yes.f95	Y6	A variable declared within a function called by a parallel region	New
DRB084-threadprivatemissing-orig-yes.f95	Y2	Missing threadprivate for a global var, not referenced within a construct	New
DRB086-static-data-member-orig-yes.f95	Y2	Missing threadprivate for a static member, not referenced within a construct	New
DRB087-static-data-member2-orig-yes.f95	Y2	Missing threadprivate for a static member, referenced within a construct	New
DRB088-dynamic-storage-orig-yes.f95	Y2	Data race for a dynamica storage variable, not referenced within a construct	New
DRB089-dynamic-storage2-orig-yes.f95	Y2	Data race for a dynamica storage variable, referenced within a construct	New
DRB090-static-local-orig-yes.f95	Y2	Data race for a locally declared static variable	New
DRB092-threadprivatemissing2-orig-yes.f95	Y2	Missing threadprivate for a variable referenced within a construct	New
DRB095-doall2-taskloop-orig-yes.f95	Y2	Missing protection for inner loop's loop variable	New
DRB106-taskwaitmissing-orig-yes.f95	Y3	Missing taskwait to ensure correct order of calculations	New
DRB109-orderedmissing-orig-yes.f95	Y3	Missing the ordered clause, causing data races	New
DRB111-linearmissing-orig-yes.f95	Y2	Missing linear for a shared variable, causing data races	New
DRB114-if-orig-yes.f95	Y1	True data dependence within a single level loop, with if() clause	New
DRB115-forsimd-orig-yes.f95	Y1,Y4	Both thread and instruction level data races due to omp loop simd	New
DRB116-target-teams-orig-yes.f95	Y3	Master threads of two teams do not have synchronization, causing data races	New
DRB117-taskwait-waitonlychild-orig-yes.f95	Y3	Thread encountering the taskwait is only waiting for the child task's completion, not the descendant tasks.	New
DRB119-nestlock-orig-yes.f95	Y3	Missing omp_set_nest_lock() on a function called at multiple points.	New
DRB123-taskundeferred-orig-yes.f95	Y6	A single thread spawning multiple tasks due to missing if(0)	New
DRB124-master-orig-yes.f95	Y3	Master construct does not have an implicit barrier.	New
DRB129-mergeable-taskwait-orig-yes.f95	Y2	Created task will access different instances of a variable depending on the mergeable status. Missing shared clause.	New
DRB131-taskdep4-orig-omp45-yes.f95	Y3	Accessing a variable before the completion of the operation. Missing taskwait.	New
DRB134-taskdep5-orig-omp45-yes.f95	Y1	Operation depends on two variables, but the depend clause is mentioned only for one variable.	New
DRB136-taskdep-mutexinoutset-orig-yes.f95	Y1,Y6	Missing mutexinoutset dependence type on a variable. Undefined execution order.	OpenMP Official Examples
DRB138-simdsafelen-orig-yes.f95	Y6	Parameter for safelen() clause having a value lesser than required for a defined execution.	New
DRB140-reduction-barrier-orig-yes.f95	Y3	Asynchronous update by master directive and usage in reduction clause.	New
DRB142-acquirerelease-orig-omp50-yes.f95	Y3	Missing implicit flush after critical construct.	New
DRB144-critical-missingreduction-orig-gpu-yes.f95	Y5,Y3	Asynchronous update of a variable across teams due to improper critical and atomic construct usage.	New
DRB148-critical1-orig-gpu-yes.f95	Y5,Y3	Due to different locks, addition and subtraction interleave.	New
DRB150-missinglock1-orig-gpu-yes.f95	Y5,Y3	distribute parallel do directive executes across teams. omp_set_lock() ensures synchronization only within a team.	New
DRB151-missinglock3-orig-gpu-yes.f95	Y5,Y3	Missing synchronization in teams distribute parallel do construct among a team of threads.	New
DRB153-missinglock2-orig-gpu-yes.f95	Y5,Y2	Concurrent access of a variable in an intra region with locks leading to intra region data race.	New
DRB156-missingordered-orig-gpu-yes.f95	Y5,Y6	Execution on accelerators with missing ordered directive causes data race.	New
DRB157-missingorderedsimd-orig-gpu-yes.f95	Y5,Y4	Missing synchronization on accelerator due to simd directive.	New
DRB160-nobarrier-orig-gpu-yes.f95	Y5,Y3	Missing implicit barrier due to distribute directive.	New
DRB161-nolocksimd-orig-gpu-yes.f95	Y5,Y3	Concurrent access on a counter with no lock with simd—atomicity Violation.	New
DRB164-simdmissinglock1-orig-gpu-yes.f95	Y5,Y3	Concurrent access on a counter with no lock with simd across teams. Inter-region data race	New
DRB165-taskdep4-orig-omp50-yes.f95	Y3	Missing taskwait. Accessing a variable before task completion.	OpenMP Official Examples
DRB168-taskdep5-orig-omp50-yes.f95	Y1	OpenMP depend clause for only one variable in a bivariate equation.	OpenMP Official Examples
DRB169-workshare-orig-yes.f95	Y3	nowait clause nullifying the workshare directive's implicit barrier.	New
DRB171-input-dependence-var-yes.f95	Y1	Input dependence race	OMPRacer
DRB172-thread-sensitivity-yes.f95	Y6	Conflicting writes to same address	New

Microbenchmarks without known data races

Microbenchmark	P-Label	Description	Source
DRB043-adi-parallel-no.F95	N2	Alternating Direction Implicit solver, non-optimized version	New
DRB044-adi-tile-no.F95	N2,N4	Alternating Direction Implicit solver, with tiling and nested SIMD	New
DRB045-doall1-orig-no.f95	N1	Classic DOAll loop operating on a one dimensional array	New
DRB046-doall2-orig-no.f95	N1	Classic DOAll loop operating on a two dimensional array	New
DRB047-doallchar-orig-no.f95	N1,N3	Classic DOAll loop operating on a character array	New
DRB048-firstprivate-orig-no.f95	N2	Example use of firstprivate	New
DRB049-fprintf-orig-no.f95	N6	Use of write()	New
DRB050-functionparameter-orig-no.f95	N6	Arrays passed as function parameters	New
DRB051-getthreadnum-orig-no.f95	N2	Single thread execution using if (omp_get_thread_num()==0)	New
DRB052-indirectaccesssharebase-orig-no.f95	N7	Indirect array accesses using index arrays without overlapping	New
DRB053-inneronly1-orig-no.f95	N1	Two-level nested loops, inner level is parallelizable. Anti dependence on outer level	New
DRB054-inneronly2-orig-no.f95	N1	Two-level nested loops, inner level is parallelizable. True dependence on outer level	New
DRB057-jacobiinitialize-orig-no.f95	N7	The array initialization parallel loop in Jacobi	New
DRB058-jacobikernel-orig-no.f95	N7	Parallel Jacobi stencil computation kernel with array copying and reduction	New
DRB059-lastprivate-orig-no.f95	N2	Example use of lastprivate	New
DRB060-matrixmultiply-orig-no.f95	N7	Classic i-k-j order matrix multiplication using OpenMP	New
DRB061-matrixvector1-orig-no.f95	N7	Matrix-vector multiplication parallelized at the outer level loop	New
DRB062-matrixvector2-orig-no.f95	N7	Matrix-vector multiplication parallelized at the inner level loop with reduction	New
DRB063-outeronly1-orig-no.f95	N2	Two-level nested loops, outer level is parallelizable. Anti dependence on inner level	New
DRB064-outeronly2-orig-no.f95	N2	Two-level nested loops, outer level is parallelizable. True dependence on inner level	New
DRB065-pireduction-orig-no.f95	N7	PI calculation using reduction	New
DRB066-pointernoaliasing-orig-no.f95	N6	Pointers assigned by different malloc calls, without aliasing	New
DRB067-restrictpointer1-orig-no.f95	N6	Equivalent to restrict pointers used for array initialization, no aliasing	New
DRB068-restrictpointer2-orig-no.f95	N6	Equivalent to restrict pointers used for array computation, no aliasing	New
DRB069-sectionslock1-orig-no.f95	N3	OpenMP parallel sections with a lock to protect shared data writes	New
DRB070-simd1-orig-no.f95	N1,N4	OpenMP SIMD directive to indicate vectorization of a loop	New
DRB071-targetparallelfor-orig-no.f95	N1,N5	No data races in loops offloaded to accelerators	New
DRB072-taskdep1-orig-no.f95	N3	OpenMP task with depend clauses to avoid data races	New
DRB076-flush-orig-no.f95	N2	OpenMP private clause to avoid data races	New
DRB077-single-orig-no.f95	N1	OpenMP single directive to use only one thread for execution	New
DRB078-taskdep2-orig-no.f95	N3	OpenMP task depend clause to avoid data races	New
DRB079-taskdep3-orig-no.f95	N3	OpenMP task depend clause to avoid data races	New
DRB081-func-arg-orig-no.f95	N6	Function arguments passed by value, private	New
DRB083-declared-in-func-orig-no.f95	N6	A variable declared within a function called by a parallel region	New
DRB085-threadprivate-orig-no.f95	N2	Use threadprivate to protect a file scope variable, not referenced within a construct	New
DRB091-threadprivate2-orig-no.f95	N2	Use threadprivate to protect a file scope variable, referenced within a construct	New
DRB093-doall2-collapse-orig-no.f95	N2	Use collapse(n) to control the number of associated loops of omp do	New
DRB094-doall2-ordered-orig-no.f95	N2	Use ordered(n) to control the number of associated loops of omp do	New
DRB096-doall2-taskloop-collapse-orig-no.f95	N2	Use ordered(n) to control the number of associated loops of taskloop	New
DRB097-target-teams-distribute-orig-no.f95	N2	Predetermined attribute rule for loop variable associated with distribute	New
DRB098-simd2-orig-no.f95	N1,N2	OpenMP SIMD directive to indicate vectorization of two nested loops	New
DRB099-targetparallelfor2-orig-no.f95	N1,N5	Loops offloaded to accelerators: array sections derived from pointer	New
DRB100-task-reference-orig-no.f95	N1	OpenMP 4.5 feature: orphaned task generating construct using pass-by-reference	New
DRB101-task-value-orig-no.f95	N1	In a task generating construct, a variable without applicable rules is firstprivate	New
DRB102-copyprivate-orig-no.f95	N2	threadprivate+copyprivate, a variable without applicable rules is firstprivate	New
DRB103-master-orig-no.f95	N1	master directive to ensure only one thread will execute data accesses	New
DRB104-nowait-barrier-orig-no.f95	N3	Use barrier to ensure correct order of initialization and assignment phases	New
DRB105-taskwait-orig-no.f95	N3	Use taskwait to ensure correct order of tasks	New
DRB107-taskgroup-orig-no.f95	N3	Use taskgroup to ensure correct order of tasks	New
DRB108-atomic-orig-no.f95	N3	Use atomic to protect shared accesses to a variable	New
DRB110-ordered-orig-no.f95	N3	Proper use of the ordered clause to avoid data races	New
DRB112-linear-orig-no.f95	N2	Use linear to privatize a variable	New
DRB113-default-orig-no.f95	N1	default(none) to enforce explicitly listing variables in data-sharing clauses	New
DRB118-nestlock-orig-no.f95	N3	Use of omp_set_nest_lock to be able to lock several times. Extracted from an official OpenMP example	OpenMP Official Example
DRB120-barrier-orig-no.f95	N3	Use barrier to ensure the correct order of increment ops.	New
DRB121-reduction-orig-no.f95	N2	Use reduction clause to get the correct sum within a parallel region.	New
DRB122-taskundeferred-orig-no.f95	N6	Undeferred all the tasks using if(0)	OpenMP Official Example
DRB125-single-orig-no.f95	N1	Single construct usage to have implicit barrier, private.	New
DRB126-firstprivatesections-orig-no.f95	N1	Use of firstprivate and omp_set_num_threads() to ensure that the same thread executes both the sections.	New
DRB127-tasking-threadprivate1-orig-no.f95	N1	Order execution is undefined. There is a race condition but no data race.	New
DRB128-tasking-threadprivate2-orig-no.f95	N1	Restricting update to a threadprivate variable.	New
DRB130-mergeable-taskwait-orig-no.f95	N2	Use of mergeable construct on a shared variable ensures that the outcome does not depend on task's merged status.	New
DRB132-taskdep4-orig-omp45-no.f95	N3, N1	Accessing a variable safely after taskwait directive, two variables. OpenMP 4.5 compliant.	New
DRB133-taskdep5-orig-omp45-no.f95	N3	Accessing a variable safely after taskwait directive, single variable. OpenMP 4.5 compliant.	New
DRB135-taskdep-mutexinoutset-orig-omp50-no.f95	N1	Use of mutexinoutset in depend clause to avoid data race.	OpenMP Official Example
DRB137-simdsafelen-orig-no.f95	N1	Use of safelen construct to avoid udnefined behavior.	New
DRB139-worksharingcritical-orig-no.f95	N1	Use of single directive inside a nested parallel region within a critical construct.	New
DRB141-reduction-barrier-orig-no.f95	N3	Addition of explicit barrier to ensure completion of initialization of a variable before encountering a parallel region.	New
DRB143-acquirerelease-orig-omp50-no.f95	N3	Use of flush after critical construct to avoid data race.	New
DRB145-atomiccritical-orig-gpu-no.f95	N5, N2	Use of reduction construct to synchronize across teams.	New
DRB146-atomicupdate-orig-gpu-no.f95	N5, N3, N1	Use of atomic update construct to have synchronization across teams.	New
DRB147-critical1-orig-gpu-no.f95	N5, N1	To have synchronization across distribute parallel loop across teams, usage of atomic construct.	New
DRB149-missingdata1-orig-gpu-no.f95	N5	Classic i-k-j matrix multiplication on accelerator.	New
DRB152-missinglock2-orig-gpu-no.f95	N5, N3	Use of omp_set_lock() to synchronize within a team.	New
DRB154-missinglock3-orig-gpu-no.f95	N5, N3	Use omp_set_lock() and reduction construct to avoid atomicity violations across teams on accelerators.	New
DRB155-missingordered-orig-gpu-no.f95	N5, N1	Proper use of the ordered clause to avoid data races, ensuring sequential consistency.	New
DRB158-missingtaskbarrier-orig-gpu-no.f95	N5, N1	Use of depend clause to ensure correct execution sequence.	New
DRB159-nobarrier-orig-gpu-no.f95	N5, N3	Vector addition and multiplication employing the same variable should have a barrier in between.	New
DRB162-nolocksimd-orig-gpu-no.f95	N5, N4	Use reduction clause to avoid concurrent access on a variable due to exceeding permitted threads usage per warp limit.	New
DRB163-simdmissinglock1-orig-gpu-no.f95	N5, N4	SIMD directive indicates vectorization of a loop on the accelerator; usage of reduction to ensure no data race.	New
DRB166-taskdep4-orig-omp50-no.f95	N1	Use of takwait to avoid data race due to access before decrement operation. OpenMP 5.0 compliant.	OpenMP Official Example
DRB167-taskdep5-orig-omp50-no.f95	N1	Dependency on two variables but defined only on one. Use of taskwait ensures no data race. OpenMP5.0 compliant.	OpenMP Official Example
DRB170-workshare-orig-no.f95	N3	Workshare construct has an implicit barrier.	New