Actual source code: hostcontext.cxx
1: #include <petsc/private/deviceimpl.h>
3: #include <petsc/private/cpp/macros.hpp>
4: #include <petsc/private/cpp/utility.hpp>
6: namespace Petsc
7: {
9: namespace device
10: {
12: namespace host
13: {
15: namespace impl
16: {
18: class DeviceContext {
19: public:
20: PETSC_CXX_COMPAT_DECL(PetscErrorCode destroy(PetscDeviceContext)) { return 0; }
21: PETSC_CXX_COMPAT_DECL(PetscErrorCode changeStreamType(PetscDeviceContext, PetscStreamType)) { return 0; }
22: PETSC_CXX_COMPAT_DECL(PetscErrorCode setUp(PetscDeviceContext)) { return 0; }
23: PETSC_CXX_COMPAT_DECL(PetscErrorCode query(PetscDeviceContext, PetscBool *idle))
24: {
25: *idle = PETSC_TRUE; // the host is always idle
26: return 0;
27: }
28: PETSC_CXX_COMPAT_DECL(PetscErrorCode waitForContext(PetscDeviceContext, PetscDeviceContext)) { return 0; }
29: PETSC_CXX_COMPAT_DECL(PetscErrorCode synchronize(PetscDeviceContext)) { return 0; }
30: PETSC_CXX_COMPAT_DECL(PetscErrorCode getBlasHandle(PetscDeviceContext, void *)) { SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP, "Not implemented"); }
31: PETSC_CXX_COMPAT_DECL(PetscErrorCode getSolverHandle(PetscDeviceContext, void *)) { SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP, "Not implemented"); }
32: PETSC_CXX_COMPAT_DECL(PetscErrorCode getStreamHandle(PetscDeviceContext, void *)) { SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP, "Not implemented"); }
33: PETSC_CXX_COMPAT_DECL(PetscErrorCode beginTimer(PetscDeviceContext)) { SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP, "Not implemented"); }
34: PETSC_CXX_COMPAT_DECL(PetscErrorCode endTimer(PetscDeviceContext, PetscLogDouble *)) { SETERRQ(PETSC_COMM_SELF, PETSC_ERR_SUP, "Not implemented"); }
36: const _DeviceContextOps ops = {destroy, changeStreamType, setUp, query, waitForContext, synchronize, getBlasHandle, getSolverHandle, getStreamHandle, beginTimer, endTimer, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr};
37: };
39: } // namespace impl
41: } // namespace host
43: } // namespace device
45: } // namespace Petsc
47: PetscErrorCode PetscDeviceContextCreate_HOST(PetscDeviceContext dctx)
48: {
49: static constexpr auto hostctx = ::Petsc::device::host::impl::DeviceContext{};
51: PetscAssert(!dctx->data, PETSC_COMM_SELF, PETSC_ERR_ARG_WRONGSTATE, "PetscDeviceContext %" PetscInt64_FMT " is of type host, but still has data member %p", PetscObjectCast(dctx)->id, dctx->data);
52: PetscArraycpy(dctx->ops, &hostctx.ops, 1);
53: return 0;
54: }