void BlockManager::lazy_gpu_read_on_host(const Block::BlockPtr& blk) {
if (!blk->is_on_gpu() && !blk->is_on_host()) {
fail("block allocated neither on host or gpu", current_line());
} else if (!blk->is_on_host()) {
blk->allocate_host_data();
_gpu_device_to_host(blk->get_data(), blk->get_gpu_data(), blk->size());
} else if (blk->is_dirty_on_gpu()) {
_gpu_device_to_host(blk->get_data(), blk->get_gpu_data(), blk->size());
} else if (blk->is_dirty_on_all()) {
fail("block dirty on host & gpu !", current_line());
}
blk->set_on_host();
blk->unset_dirty_on_gpu();
}
void BlockManager::lazy_gpu_write_on_device(Block::BlockPtr& blk, const BlockId &id, const BlockShape& shape) {
if (!blk->is_on_gpu() && !blk->is_on_host()) {
block_map_.cached_delete_block(id); // Get rid of block, create a new one
blk = create_gpu_block(id, shape);
// if (is_scope_extent) {
// temp_block_list_stack_.back()->push_back(id);
// }
} else if (!blk->is_on_gpu()) {
blk->allocate_gpu_data();
_gpu_host_to_device(blk->get_data(), blk->get_gpu_data(), blk->size());
} else if (blk->is_dirty_on_host()) {
_gpu_host_to_device(blk->get_data(), blk->get_gpu_data(), blk->size());
} else if (blk->is_dirty_on_all()) {
fail("block dirty on host & gpu !", current_line());
}
blk->set_on_gpu();
blk->set_dirty_on_gpu();
blk->unset_dirty_on_host();
}