cnmem=1, default to 0.95 as otherwise, there is problems by default. It will…

cnmem=1, default to 0.95 as otherwise, there is problems by default. It will make smaller extra alloc by default if needed. We do this if cnmem > 0.99 to prevent rounding problems and allow user to start as the old way.

cnmem=1, default to 0.95 as otherwise, there is problems by default. It will…
2767204e · Frederic Bastien · 61e7d5a3 · 2767204e
--- a/theano/sandbox/cuda/cuda_ndarray.cu
+++ b/theano/sandbox/cuda/cuda_ndarray.cu
@@ -3244,10 +3244,10 @@ CudaNdarray_gpu_init(PyObject* _unused, PyObject* args)
        if (cnmem > 1)
            mem = cnmem * 1024 * 1024;
        else{
-            // Clip to 98% to let memory for the driver.
+            // Clip to 95% to let memory for the driver.
-            // 98.5% didn't worked in some cases.
+            // 98% didn't worked in some cases.
-            if (cnmem > .98){
+            if (cnmem > .99){
-                cnmem = .98;
+                cnmem = .95;
            }
            size_t free = 0, total = 0;
            cudaError_t err = cudaMemGetInfo(&free, &total);