PetscMalloc1#

Allocates an array of memory aligned to PETSC_MEMALIGN

Synopsis#

#include <petscsys.h>
PetscErrorCode PetscMalloc1(size_t m1,type **r1)

Not Collective

Input Parameter#

  • m1 - number of elements to allocate (may be zero)

Output Parameter#

  • r1 - memory allocated

Note#

This uses the sizeof() of the memory type requested to determine the total memory to be allocated, therefore you should not multiply the number of elements requested by the sizeof() the type. For example use

  PetscInt *id;
  PetscMalloc1(10,&id);

not

  PetscInt *id;
  PetscMalloc1(10*sizeof(PetscInt),&id);

Does not zero the memory allocated, use PetscCalloc1() to obtain memory that has been zeroed.

See Also#

PetscFree(), PetscNew(), PetscMalloc(), PetscCalloc1(), PetscMalloc2()

Level#

beginner

Location#

include/petscsys.h

Examples#

src/tao/pde_constrained/tutorials/parabolic.c
src/tao/pde_constrained/tutorials/elliptic.c
src/tao/tutorials/ex3.c
src/tao/unconstrained/tutorials/spectraladjointassimilation.c
src/tao/pde_constrained/tutorials/hyperbolic.c
src/tao/complementarity/tutorials/blackscholes.c
src/tao/unconstrained/tutorials/burgers_spectral.c
src/tao/unconstrained/tutorials/minsurf2.c
src/tao/unconstrained/tutorials/minsurf1.c
src/tao/complementarity/tutorials/minsurf1.c


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