int square(double a[],double b[])
{
// Init Julia
jl_init_with_image("/Users/fgans/julia/julia-4d1b751dda/lib/julia", "sys.ji");
JL_SET_STACK_BASE;
// Define Array Type for 1D Array
jl_value_t* array_type = jl_apply_array_type(jl_float64_type, 1);
// Connect C-Arrays to julia Arrays
jl_array_t *a_jl = jl_ptr_to_array_1d(array_type, a, 1, 0);
jl_array_t *b_jl = jl_ptr_to_array_1d(array_type, b, 1, 0);
// Load julia code
jl_eval_string("include(\"square.jl\")");
// Get function
jl_function_t *func = jl_get_function(jl_main_module, "square");
if (func==NULL) {
printf("Function not found!\n");
return -1;
}
// Apply function
jl_call2(func, (jl_value_t*)a_jl,(jl_value_t*)b_jl);
if (jl_exception_occurred()) printf("%s \n", jl_typeof_str(jl_exception_occurred()));
return 0;
}
static jl_value_t *from_td_val(td_val_t *v)
{
td_tag_t tag = td_typeof(v);
switch (tag) {
case TD_INT8:
return jl_box_int8(td_int8(v));
case TD_UINT8:
return jl_box_uint8(td_uint8(v));
case TD_INT16:
return jl_box_int16(td_int16(v));
case TD_UINT16:
return jl_box_uint16(td_uint16(v));
case TD_INT32:
return jl_box_int32(td_int32(v));
case TD_UINT32:
return jl_box_uint32(td_uint32(v));
case TD_INT64:
return jl_box_int64(td_int64(v));
case TD_UINT64:
return jl_box_uint64(td_uint64(v));
case TD_FLOAT:
return jl_box_float32(td_float(v));
case TD_DOUBLE:
return jl_box_float64(td_double(v));
case TD_UTF8:
return jl_pchar_to_string(td_dataptr(v), td_length(v));
case TD_ARRAY:
return (jl_value_t*)
jl_ptr_to_array_1d((jl_value_t*)jl_apply_array_type((jl_datatype_t*)td_type_to_jl(td_eltype(v)), 1),
td_dataptr(v), td_length(v), 0);
default:
return jl_nothing;
}
}
void juliaProblem::EucHessianEta(Variable *x, Vector *etax, Vector *exix) const
{
// x->Print("cpp hf x");//---
// etax->Print("cpp hf etax");//---
jl_value_t* array_type = jl_apply_array_type(jl_float64_type, 1);
double *xptr = x->ObtainWritePartialData();
jl_array_t *arrx = jl_ptr_to_array_1d(array_type, xptr, x->Getlength(), 0);
double *etaxptr = etax->ObtainWritePartialData();
jl_array_t *arretax = jl_ptr_to_array_1d(array_type, etaxptr, etax->Getlength(), 0);
jl_array_t *arrtmp = nullptr;
if(x->TempDataExist(("Tmp")))
{
const SharedSpace *Tmp = x->ObtainReadTempData("Tmp");
// Tmp->Print("cpp hf inTmp");//---
const double *tmpptr = Tmp->ObtainReadData();
arrtmp = jl_ptr_to_array_1d(array_type, const_cast<double *> (tmpptr), Tmp->Getlength(), 0);
} else
{
arrtmp = jl_ptr_to_array_1d(array_type, nullptr, 0, 0);
}
jl_value_t *retresult = jl_call3(jl_Hess, (jl_value_t *) arrx, (jl_value_t *) arrtmp, (jl_value_t *) arretax);
jl_array_t *jl_exix = (jl_array_t *) jl_get_nth_field(retresult, 0);
jl_array_t *outtmp = (jl_array_t *) jl_get_nth_field(retresult, 1);
if(jl_array_len(jl_exix) != etax->Getlength())
{
std::cout << "error: the size of the action of the Hessian is not correct!" << std::endl;
exit(EXIT_FAILURE);
}
integer exixlen = exix->Getlength();
double *exixptr = exix->ObtainWriteEntireData();
dcopy_(&exixlen, (double*)jl_array_data(jl_exix), &GLOBAL::IONE, exixptr, &GLOBAL::IONE);
// exix->Print("cpp hf exix:");//---
integer outtmplen = jl_array_len(outtmp);
if(outtmplen != 0)
{
SharedSpace *sharedouttmp = new SharedSpace(1, outtmplen);
double *outtmpptr = sharedouttmp->ObtainWriteEntireData();
dcopy_(&outtmplen, (double*)jl_array_data(outtmp), &GLOBAL::IONE, outtmpptr, &GLOBAL::IONE);
x->RemoveFromTempData("Tmp");
x->AddToTempData("Tmp", sharedouttmp);
}
};
JL_DLLEXPORT jl_array_t *jl_ptr_to_array(jl_value_t *atype, void *data,
jl_value_t *_dims, int own_buffer)
{
jl_ptls_t ptls = jl_get_ptls_states();
size_t elsz, nel = 1;
jl_array_t *a;
size_t ndims = jl_nfields(_dims);
wideint_t prod;
assert(is_ntuple_long(_dims));
size_t *dims = (size_t*)_dims;
for (size_t i = 0; i < ndims; i++) {
prod = (wideint_t)nel * (wideint_t)dims[i];
if (prod > (wideint_t) MAXINTVAL)
jl_error("invalid Array dimensions");
nel = prod;
}
if (__unlikely(ndims == 1))
return jl_ptr_to_array_1d(atype, data, nel, own_buffer);
jl_value_t *el_type = jl_tparam0(atype);
int isunboxed = store_unboxed(el_type);
if (isunboxed)
elsz = jl_datatype_size(el_type);
else
elsz = sizeof(void*);
int ndimwords = jl_array_ndimwords(ndims);
int tsz = JL_ARRAY_ALIGN(sizeof(jl_array_t) + ndimwords*sizeof(size_t), JL_CACHE_BYTE_ALIGNMENT);
a = (jl_array_t*)jl_gc_alloc(ptls, tsz, atype);
// No allocation or safepoint allowed after this
a->flags.pooled = tsz <= GC_MAX_SZCLASS;
a->data = data;
#ifdef STORE_ARRAY_LEN
a->length = nel;
#endif
a->elsize = elsz;
a->flags.ptrarray = !isunboxed;
a->flags.ndims = ndims;
a->offset = 0;
a->flags.isshared = 1;
a->flags.isaligned = 0;
if (own_buffer) {
a->flags.how = 2;
jl_gc_track_malloced_array(ptls, a);
jl_gc_count_allocd(nel*elsz + (elsz == 1 ? 1 : 0));
}
else {
a->flags.how = 0;
}
assert(ndims != 1); // handled above
memcpy(&a->nrows, dims, ndims * sizeof(size_t));
return a;
}
ValueIfNotPtrArray<T> boxArray(T* data, size_t size)
{
log("boxArray(T*) - jl_ptr_to_array_1d");
jl_datatype_t* dataType = TypeTraits<UnqualifiedType<T>>::dataType();
JULIACPP_ASSERT(dataType != nullptr, "Data type not supported.");
jl_value_t* arrayType = jl_apply_array_type(dataType, 1);
jl_array_t* array = jl_ptr_to_array_1d(arrayType, data, size, 0);
return (jl_value_t*)array;
}
double juliaProblem::f(Variable *x) const
{
// x->Print("cpp f x");//---
jl_value_t* array_type = jl_apply_array_type(jl_float64_type, 1);
double *xptr = x->ObtainWritePartialData();
jl_array_t *arrx = jl_ptr_to_array_1d(array_type, xptr, x->Getlength(), 0);
jl_array_t *arrtmp = nullptr;
if(x->TempDataExist(("Tmp")))
{
const SharedSpace *Tmp = x->ObtainReadTempData("Tmp");
const double *tmpptr = Tmp->ObtainReadData();
arrtmp = jl_ptr_to_array_1d(array_type, const_cast<double *> (tmpptr), Tmp->Getlength(), 0);
} else
{
arrtmp = jl_ptr_to_array_1d(array_type, nullptr, 0, 0);
}
jl_value_t *retresult = jl_call2(jl_f, (jl_value_t *) arrx, (jl_value_t *) arrtmp);
jl_get_nth_field(retresult, 0);
jl_value_t *fx = jl_get_nth_field(retresult, 0);
jl_array_t *outtmp = (jl_array_t *) jl_get_nth_field(retresult, 1);
integer outtmplen = jl_array_len(outtmp);
SharedSpace *sharedouttmp = new SharedSpace(1, outtmplen);
double *outtmpptr = sharedouttmp->ObtainWriteEntireData();
dcopy_(&outtmplen, (double*)jl_array_data(outtmp), &GLOBAL::IONE, outtmpptr, &GLOBAL::IONE);
// sharedouttmp->Print("cpp f tmp:");//----
x->RemoveFromTempData("Tmp");
x->AddToTempData("Tmp", sharedouttmp);
if(jl_is_float64(fx))
{
double result = jl_unbox_float64(fx);
// std::cout << "cpp f fx:" << result << std::endl;//-----
return result;
}
std::cout << "Error: The objectve function must return a number of double precision!" << std::endl;
exit(EXIT_FAILURE);
};
jl_array_t *jl_takebuf_array(ios_t *s)
{
size_t n;
jl_array_t *a;
if (s->buf == &s->local[0]) {
// small data case. copies, but this can be avoided using the
// technique of jl_readuntil below.
a = jl_pchar_to_array(s->buf, s->size);
ios_trunc(s, 0);
}
else {
char *b = ios_takebuf(s, &n);
a = jl_ptr_to_array_1d(jl_array_uint8_type, b, n-1, 1);
}
return a;
}
