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+/* StarPU --- Runtime system for heterogeneous multicore architectures.
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+ *
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+ * Copyright (C) 2011 Centre National de la Recherche Scientifique
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+ *
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+ * StarPU is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU Lesser General Public License as published by
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+ * the Free Software Foundation; either version 2.1 of the License, or (at
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+ * your option) any later version.
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+ *
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+ * StarPU is distributed in the hope that it will be useful, but
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+ * WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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+ *
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+ * See the GNU Lesser General Public License in COPYING.LGPL for more details.
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+ */
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+
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+#include <starpu.h>
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+
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+void func_cpu(void *descr[], __attribute__ ((unused)) void *_args)
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+{
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+ int *x0 = (int *)STARPU_VARIABLE_GET_PTR(descr[0]);
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+ int *x1 = (int *)STARPU_VARIABLE_GET_PTR(descr[1]);
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+
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+ *x0 = *x0 * 10;
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+ *x1 = *x1 * 10;
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+}
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+
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+starpu_codelet mycodelet = {
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+ .where = STARPU_CPU,
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+ .cpu_func = func_cpu,
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+ .nbuffers = 2
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+};
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+
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+int main(int argc, char **argv)
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+{
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+ int x[2];
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+ int i;
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+ starpu_data_handle data_handles[2];
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+
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+ starpu_init(NULL);
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+
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+ for(i=0 ; i<2 ; i++) {
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+ x[i] = 10*(i+1);
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+ starpu_variable_data_register(&data_handles[i], 0, (uintptr_t)&x[i], sizeof(x[i]));
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+ }
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+
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+ starpu_insert_task(&mycodelet,
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+ STARPU_RW, data_handles[0], STARPU_RW, data_handles[1],
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+ 0);
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+ starpu_task_wait_for_all();
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+
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+ for(i=0 ; i<2 ; i++) {
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+ starpu_data_acquire(data_handles[i], STARPU_R);
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+ }
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+ fprintf(stderr, "VALUES: %d %d\n", x[0], x[1]);
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+
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+ starpu_shutdown();
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+
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+ return 0;
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+}
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