CUDA API failed with error

[haxushu]

Describe the Bug

When running abacus-gpu version in abacus-develop/examples/01a_Si_diamond_pw_scf, the following message appears.

In File /root/abacus-develop/source/src_pw/hamilt_pw.cu : CUDA API failed at line 1558 with error: invalid argument (1)

It may be fixed like this:

	if(m == 1)
	{
		CHECK_CUDA(cudaFree(ps));
	}

=== To ==>

    if(m != 1)
	{
		CHECK_CUDA(cudaFree(ps));
	}

[caic99]

@haxushu Thank you for your report!
@Asuna981002 Would you look into it? In my opinion this patch is correct.

abacus-develop/source/src_pw/hamilt_pw.cu

Lines 1556 to 1559 in bdd7256

	if(m == 1)
	{
	CHECK_CUDA(cudaFree(ps));
	}