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Integration of backend-specific allocator #175

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Integration of backend-specific allocator #175

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50bdb3c
extended backend api to enable backend specific allocator
Feb 20, 2025
08fe8c3
removed comments
Feb 25, 2025
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2 changes: 2 additions & 0 deletions include/laik/backend.h
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,8 @@ struct _Laik_Backend {
// for elasticity: removal of processes which got started in a previous
// resize is finished. They can be marked as dead and resources freed
void (*finish_resize)();

Laik_Allocator* (*allocator)();
};


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15 changes: 14 additions & 1 deletion src/data.c
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Expand Up @@ -156,6 +156,18 @@ void laik_switchstat_free(Laik_SwitchStat* ss, uint64_t bytes)

static int data_id = 0;

// get backend specific allocator
static Laik_Allocator* allocator(Laik_Instance* inst, Laik_Data* d)
{
(void)d;
Laik_Allocator* (*create)();
create = inst->backend->allocator;

assert(laik_allocator_def);

return create ? create() : laik_allocator_def;
}

Laik_Data* laik_new_data(Laik_Space* space, Laik_Type* type)
{
Laik_Data* d = malloc(sizeof(Laik_Data));
Expand All @@ -177,7 +189,8 @@ Laik_Data* laik_new_data(Laik_Space* space, Laik_Type* type)
d->activePartitioning = 0;
d->activeMappings = 0;
assert(laik_allocator_def);
d->allocator = laik_allocator_def; // malloc/free + reuse if possible
d->allocator = allocator(space->inst, d); // malloc/free + reuse if possible
assert(d->allocator);
d->layout_factory = laik_new_layout_lex; // by default, use lex layouts
d->stat = laik_newSwitchStat();

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