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;;
;; Chicken MPI interface. Based on the Caml/MPI interface by Xavier
;; Leroy.
;;
;; Copyright 2007-2018 Ivan Raikov.
;;
;; This program is free software: you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation, either version 3 of the
;; License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; A full copy of the GPL license can be found at
;; <http://www.gnu.org/licenses/>.
;;
;; Handling of communication groups
; Include into generated code, but don't parse:
#>
static C_word MPI_group_p(C_word obj)
{
if (C_immediatep(obj)) {
return C_SCHEME_FALSE;
} else if (C_block_header(obj) == MPI_GROUP_TAG)
{
return C_SCHEME_TRUE;
} else {
return C_SCHEME_FALSE;
}
}
static C_word MPI_check_group (C_word obj)
{
if (C_immediatep(obj))
{
chicken_MPI_exception (MPI_ERR_COMM, "MPI_check_group",
32, "invalid MPI group object");
} else if (C_block_header(obj) == MPI_GROUP_TAG)
{
return C_SCHEME_UNDEFINED;
} else {
chicken_MPI_exception (MPI_ERR_COMM, "MPI_check_group",
32, "invalid MPI group object");
}
}
<#
(define MPI:group? (foreign-lambda scheme-object "MPI_group_p" scheme-object))
(define MPI_alloc_group
(foreign-primitive scheme-object ((nonnull-c-pointer group))
#<<END
C_word result;
chicken_MPI_group_t newg;
newg.tag = MPI_GROUP_TAG;
newg.group_data = group;
result = (C_word)&newg;
C_return (result);
END
))
(define MPI:group-size
(foreign-primitive scheme-object ((scheme-object x))
#<<END
C_word *ptr;
C_word result;
int size;
if (MPI_group_p (x))
{
MPI_Group_size (Group_val(x), &size);
ptr = C_alloc (C_SIZEOF_FLONUM);
result = C_int_to_num (&ptr, size);
}
else
{
result = C_SCHEME_FALSE;
}
C_return (result);
END
))
(define MPI:group-rank
(foreign-primitive scheme-object ((scheme-object x))
#<<END
C_word result;
C_word *ptr;
int rank;
if (MPI_group_p (x))
{
MPI_Group_rank (Group_val(x), &rank);
ptr = C_alloc (C_SIZEOF_FLONUM);
result = C_int_to_num (&ptr, rank);
}
else
{
result = C_SCHEME_FALSE;
}
C_return (result);
END
))
(define MPI_group_translate_ranks
(foreign-primitive scheme-object ((scheme-object group1)
(scheme-object group2)
(integer nranks)
(scheme-object ranks)
(scheme-object ranks1)
(scheme-object ranks2))
#<<END
int i; int *vranks, *vranks1, *vranks2;
C_word result;
C_i_check_vector (ranks);
C_i_check_vector (ranks1);
C_i_check_vector (ranks2);
if ((MPI_group_p (group1)) && (MPI_group_p (group2)))
{
vranks = C_c_s32vector (ranks);
vranks1 = C_c_s32vector (ranks1);
vranks2 = C_c_s32vector (ranks2);
for (i = 0; i < nranks; i++)
vranks1[i] = vranks[i];
MPI_Group_translate_ranks(Group_val(group1), nranks, vranks1,
Group_val(group2), vranks2);
result = ranks2;
}
else
{
result = C_SCHEME_FALSE;
};
C_return(result);
END
))
(define (MPI:group-translate-ranks group1 ranks group2)
(let ((nranks (s32vector-length ranks)))
(MPI_group_translate_ranks group1 group2 nranks
ranks (make-s32vector nranks)
(make-s32vector nranks))))
(define MPI_comm_group
(foreign-primitive nonnull-c-pointer ((scheme-object comm))
#<<END
C_word result;
MPI_Group group;
MPI_check_comm (comm);
if ((MPI_comm_p (comm)))
{
MPI_Comm_group(Comm_val(comm), &group);
result = (C_word)group;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:comm-group comm)
(MPI_alloc_group (MPI_comm_group comm)))
(define MPI_group_union
(foreign-primitive nonnull-c-pointer ((scheme-object group1)
(scheme-object group2))
#<<END
C_word result;
MPI_Group group;
MPI_check_group(group1);
MPI_check_group(group2);
if ((MPI_group_p (group1)) && (MPI_group_p (group2)))
{
MPI_Group_union(Group_val(group1), Group_val(group2), &group);
result = (C_word)group;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-union group1 group2)
(MPI_alloc_group (MPI_group_union group1 group2)))
(define MPI_group_difference
(foreign-primitive nonnull-c-pointer ((scheme-object group1)
(scheme-object group2))
#<<END
C_word result;
MPI_Group group;
MPI_check_group(group1);
MPI_check_group(group2);
if ((MPI_group_p (group1)) && (MPI_group_p (group2)))
{
MPI_Group_difference(Group_val(group1), Group_val(group2), &group);
result = (C_word)group;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-difference group1 group2)
(MPI_alloc_group (MPI_group_difference group1 group2)))
(define MPI_group_intersection
(foreign-primitive nonnull-c-pointer ((scheme-object group1)
(scheme-object group2))
#<<END
C_word result;
MPI_Group group;
MPI_check_group(group1);
MPI_check_group(group2);
if ((MPI_group_p (group1)) && (MPI_group_p (group2)))
{
MPI_Group_intersection(Group_val(group1), Group_val(group2), &group);
result = (C_word)group;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-intersection group1 group2)
(MPI_alloc_group (MPI_group_intersection group1 group2)))
(define MPI_group_incl
(foreign-primitive nonnull-c-pointer ((scheme-object group)
(integer nranks)
(scheme-object ranks))
#<<END
C_word result;
int * vranks;
MPI_Group newg;
C_i_check_vector (ranks);
MPI_check_group(group);
if ((MPI_group_p (group)))
{
vranks = C_c_s32vector (ranks);
MPI_Group_incl(Group_val(group), nranks, vranks, &newg);
result = (C_word)newg;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-incl group ranks)
(MPI_alloc_group (MPI_group_incl group (s32vector-length ranks) ranks)))
(define MPI_group_excl
(foreign-primitive nonnull-c-pointer ((scheme-object group)
(integer nranks)
(scheme-object ranks))
#<<END
C_word result;
int * vranks;
MPI_Group newg;
C_i_check_vector (ranks);
MPI_check_group(group);
if ((MPI_group_p (group)))
{
vranks = C_c_s32vector (ranks);
MPI_Group_incl(Group_val(group), nranks, vranks, &newg);
result = (C_word)newg;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-excl group ranks)
(MPI_alloc_group (MPI_group_excl group (s32vector-length ranks) ranks)))
; Include into generated code, but don't parse:
#>
static void MPI_extract_ranges (C_word ranges,
/*out*/ int * num,
/*out*/ int * exranges)
{
int i, nranges; C_word range;
C_i_check_vector (ranges);
nranges = C_unfix(C_i_vector_length (ranges));
for (i = 0; i < nranges; i++)
{
range = C_i_vector_ref (ranges, C_fix(i));
exranges[(3*i)+0] = C_num_to_int(C_u_i_s32vector_ref(range, C_fix(0)));
exranges[(3*i)+1] = C_num_to_int(C_u_i_s32vector_ref(range, C_fix(1)));
exranges[(3*i)+2] = C_num_to_int(C_u_i_s32vector_ref(range, C_fix(2)));
}
}
<#
(define MPI_group_range_incl
(foreign-primitive nonnull-c-pointer ((scheme-object group)
(scheme-object ranges)
(s32vector exranges))
#<<END
C_word result;
MPI_Group newg;
int num;
C_i_check_vector (ranges);
MPI_check_group (group);
if ((MPI_group_p (group)))
{
MPI_extract_ranges (ranges, &num, exranges);
MPI_Group_range_incl(Group_val(group), num, exranges, &newg);
result = (C_word)newg;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-range-incl group ranges)
(let ((len (vector-length ranges)))
(MPI_alloc_group (MPI_group_range_incl group ranges (make-s32vector (* 3 len))))))
(define MPI_group_range_excl
(foreign-primitive nonnull-c-pointer ((scheme-object group)
(scheme-object ranges)
(s32vector exranges))
#<<END
C_word result;
MPI_Group newg;
int num;
C_i_check_vector (ranges);
MPI_check_group (group);
if ((MPI_group_p (group)))
{
MPI_extract_ranges (ranges, &num, exranges);
MPI_Group_range_excl(Group_val(group), num, exranges, &newg);
result = (C_word)newg;
}
else
{
result = (C_word)NULL;
}
C_return (result);
END
))
(define (MPI:group-range-excl group ranges)
(let ((len (vector-length ranges)))
(MPI_alloc_group (MPI_group_range_excl group ranges (make-s32vector (* 3 len))))))