Fix a bug in sycl fft c2c

WeiqunZhang · WeiqunZhang · commit 9b5148238ddd · 2025-11-16T16:00:09.000-08:00
diff --git a/Src/FFT/AMReX_FFT_Helper.H b/Src/FFT/AMReX_FFT_Helper.H
@@ -402,7 +402,7 @@ struct Plan
         strides[0] = 0;
         strides[ndims] = 1;
         for (int i = ndims-1; i >= 1; --i) {
-            strides[i] = strides[i+1] * len[ndims-1-i];
+            strides[i] = strides[i+1] * len[i];
         }
 #ifndef AMREX_USE_MKL_DFTI_2024
         pp->set_value(oneapi::mkl::dft::config_param::FWD_STRIDES, strides);

Original file line number	Diff line number	Diff line change
`@@ -402,7 +402,7 @@ struct Plan`
`402`	`402`	`strides[0] = 0;`
`403`	`403`	`strides[ndims] = 1;`
`404`	`404`	`for (int i = ndims-1; i >= 1; --i) {`
`405`		`- strides[i] = strides[i+1] * len[ndims-1-i];`
	`405`	`+ strides[i] = strides[i+1] * len[i];`
`406`	`406`	`}`
`407`	`407`	`#ifndef AMREX_USE_MKL_DFTI_2024`
`408`	`408`	`pp->set_value(oneapi::mkl::dft::config_param::FWD_STRIDES, strides);`